The third Sunday of June every year is widely observed in many countries as which of the following special days?

Introduction / Context:
This question focuses on a day that is determined not by a fixed calendar date, but by a pattern in the calendar: the third Sunday of June. Many examinations test knowledge of such movable observances. In this case, the important day being referred to is widely known and celebrated in many countries.

Given Data / Assumptions:

• The time reference is “third Sunday of June” each year.
• Several named days are given as options.
• Only one of these commonly falls on the third Sunday of June in many countries.

Concept / Approach:
The concept here is to match a variable Sunday based observance with its popular name. The approach:

• Recall that many countries celebrate Fathers Day on the third Sunday of June.
• Identify the option that explicitly mentions Fathers Day.
• Use elimination to discard unrelated observances such as world freedom or Alzheimer related days, which fall on other dates.

Step-by-Step Solution:
Step 1: Focus on the calendar pattern: “third Sunday of June”. Step 2: Recall that in many countries, including the United States and several others, Fathers Day is celebrated on the third Sunday of June. Step 3: Examine the options and identify “International Fathers Day” as the one that matches this description. Step 4: Check that World Freedom Day, United Nations Day for South South Cooperation, World Alzheimers Day and World Parents Day fall on other dates or follow other patterns. Step 5: Conclude that the correct answer is International Fathers Day.

Verification / Alternative check:
Verification is straightforward by consulting common calendars, cultural notes or simple internet searches on Fathers Day dates. These show that the third Sunday of June is widely observed as Fathers Day across many countries. Although some countries celebrate Fathers Day on different dates, the pattern described in the question clearly refers to this widely known observance in June.

Why Other Options Are Wrong:
World Freedom Day: Typically associated with other specific historical dates, not the third Sunday of June. United Nations Day for South South Cooperation: Observed on a specific calendar date rather than a Sunday pattern in June. World Alzheimers Day: Observed on 21st September, not in June. World Parents Day: Recognised on a different date rather than the third Sunday of June.

Common Pitfalls:
Candidates may overthink the presence of “international” or “United Nations” labels and choose a more formal sounding day such as United Nations Day for South South Cooperation. Others may confuse this pattern with other family related observances. To avoid confusion, it is helpful to remember two main family related days: Mothers Day often being the second Sunday of May in many countries, and Fathers Day commonly being the third Sunday of June.

Final Answer:
The third Sunday of June is widely observed in many countries as International Fathers Day.