In 2011, the Nobel Peace Prize was jointly awarded to three individuals for their non violent struggle for the safety and rights of women. Which of the following leaders was not among the recipients of the 2011 Nobel Peace Prize?

Introduction / Context:
The Nobel Peace Prize often recognises individuals and organisations that have made significant contributions to peace, human rights, and social justice. In 2011, the prize was awarded jointly to three women for their non violent struggle for the safety of women and their right to full participation in peace building work. General knowledge exams frequently ask which names were part of this trio and sometimes frame the question by including one incorrect name, as in this problem. Identifying who was not a recipient helps test both recall and careful reading.

Given Data / Assumptions:

• The year of the prize is 2011.
• The category is the Nobel Peace Prize.
• We are given four names: Leymah Gbowee, Ellen Johnson Sirleaf, Hu Jintao, and Tawakkol Karman.
• The question specifically asks which one was not among the recipients.

Concept / Approach:
In 2011, the Nobel Peace Prize was awarded to Ellen Johnson Sirleaf (then President of Liberia), Leymah Gbowee (a Liberian peace activist), and Tawakkol Karman (a Yemeni journalist and human rights activist). These three women were recognised together for their work in advancing women participation and safety in peace building. Hu Jintao, on the other hand, is a former President of China and was not part of this Nobel Peace Prize decision. The approach is simply to recall the specific trio of women and eliminate the unrelated political leader from the list.

Step-by-Step Solution:
Step 1: Focus on the Nobel Peace Prize for the year 2011, not any other year. Step 2: Recall that the 2011 prize was shared by three women: Ellen Johnson Sirleaf, Leymah Gbowee, and Tawakkol Karman. Step 3: Match these three remembered names with the options given in the question. Step 4: Observe that Leymah Gbowee, Ellen Johnson Sirleaf, and Tawakkol Karman are in the list and therefore are actual recipients. Step 5: Identify Hu Jintao as the only name in the options who was not a recipient of the 2011 Nobel Peace Prize.

Verification / Alternative check:
You can verify this by consulting the official Nobel Prize records or reliable current affairs compendiums that list year wise Nobel Peace Prize details. These sources clearly state that the prize in 2011 went to Ellen Johnson Sirleaf, Leymah Gbowee, and Tawakkol Karman. Hu Jintao does not appear anywhere in these lists as a Nobel laureate, which confirms that he is the incorrect name among the options. A quick cross check with at least one standard exam guide or the Nobel website is usually sufficient to cement this fact in memory.

Why Other Options Are Wrong:
Leymah Gbowee: She is a Liberian peace activist who played a key role in ending civil war in Liberia and was indeed one of the 2011 Nobel Peace Prize recipients.
Ellen Johnson Sirleaf: As President of Liberia and Africa’s first elected female head of state, she was awarded the Nobel Peace Prize in 2011 along with the other two women.
Tawakkol Karman: She is a Yemeni journalist and activist who became the first Arab woman to receive the Nobel Peace Prize, sharing it in 2011 with the two Liberian laureates.

Common Pitfalls:
Some students may quickly pick a familiar political name like Hu Jintao but forget to check whether he is associated with any Nobel award at all. Others might confuse the 2011 Peace Prize with different years when other activists or political leaders were honoured. To avoid such mistakes, it is helpful to memorise that the 2011 peace prize is notable for being shared by three women and to remember their names together as a group, making it easy to spot the odd one out in questions like this.

Final Answer:
The leader who was not a recipient of the 2011 Nobel Peace Prize is Hu Jintao.