Who was appointed as an Executive Director in the World Bank in the United States to represent the constituency of India, Bangladesh, Bhutan and Sri Lanka?

Introduction / Context:
The World Bank has Executive Directors who represent groups of member countries, called constituencies. India is part of a constituency that also includes Bangladesh, Bhutan, and Sri Lanka. Appointments to the position of Executive Director for this group are significant and often mentioned in current affairs sections of competitive exams.

Given Data / Assumptions:

The position is that of Executive Director in the World Bank.
The posting is in the United States, where the World Bank is headquartered.
The Executive Director represents the constituency of India, Bangladesh, Bhutan, and Sri Lanka.
Four names are offered as options, all of which may have held senior roles in government or finance.

Concept / Approach:
The concept is factual recall of an international appointment. Senior bureaucrat S Aparna was appointed as Executive Director in the World Bank to represent the constituency of India, Bangladesh, Bhutan, and Sri Lanka for a fixed term. Recognising her name in relation to this post leads to the correct answer.

Step-by-Step Solution:
Step 1: Identify that the question is about the Executive Director post at the World Bank for a South Asian constituency. Step 2: Recall which Indian official was appointed to that role, focusing on recent current affairs. Step 3: Match this recollection with the option list and select S Aparna.

Verification / Alternative check:
Government appointment orders and news articles clearly state that S Aparna, an IAS officer, was named Executive Director at the World Bank representing India, Bangladesh, Bhutan, and Sri Lanka. These documents confirm the correctness of option A and distinguish her from other officials mentioned in the options.

Why Other Options Are Wrong:
Ashok Lavasha served in other high level capacities but was not appointed to this particular World Bank Executive Director post described here, so option B is incorrect.
Rahul Verma is not known as the official appointed to this role, making option C wrong.
S C Garg previously held the position of Executive Director at the World Bank but was replaced by S Aparna in this role, so option D does not match the appointment the question asks about.

Common Pitfalls:
Candidates may confuse different international posts held by Indian officials or assume that the most familiar name among the list must be correct. Another pitfall is not distinguishing between previous and current holders of the Executive Director post. Remembering that S Aparna took over from S C Garg as the Executive Director for this constituency helps to avoid such confusion.

Final Answer:
The Executive Director appointed at the World Bank for the India, Bangladesh, Bhutan, and Sri Lanka constituency was S Aparna.