World Food Day is an annual United Nations observance coordinated by the Food and Agriculture Organization (FAO) to promote awareness of global food security. On which date is World Food Day celebrated every year?

Introduction / Context:
World Food Day is one of the most important global observances related to hunger, agriculture, and food security. It is promoted by the Food and Agriculture Organization of the United Nations and is used to highlight issues such as malnutrition, sustainable farming, and rural development. Competitive exams frequently ask about its exact date because it is a core part of the international days that every aspirant should know.

Given Data / Assumptions:

• The observance in question is World Food Day.
• It is associated with the FAO and the United Nations system.
• The day is celebrated every year on a fixed date.
• The options give four different dates spread across several months.

Concept / Approach:
The key memory fact is that World Food Day is celebrated on October 16 each year. This date marks the anniversary of the founding of the Food and Agriculture Organization in 1945. When solving such questions, identify the link between the day and the organisation behind it, then recall the founding date or standard observance date. Once you remember that FAO was established on October 16, it becomes easy to connect this date with World Food Day.

Step-by-Step Solution:
Step 1: Recognise that World Food Day is tied to the Food and Agriculture Organization.Step 2: Recall that World Food Day is observed on the anniversary of FAO's founding.Step 3: Remember that FAO was founded on October 16, 1945, so the observance is held on October 16 every year.Step 4: Among the options, identify October 16 as choice A.Step 5: Confirm that the remaining dates do not have a strong connection with FAO or global food campaigns.

Verification / Alternative check:
To verify, think of past themes and campaigns that you may have read around mid October each year. News reports, current affairs magazines, and government campaigns about hunger and food security usually mention World Food Day as being held on October 16. If you recall such coverage in October rather than September, August, or November, that strongly supports the choice of October 16 as the correct answer for this question.

Why Other Options Are Wrong:
September 10 is not linked with World Food Day and is not widely known for FAO related observances.
August 16 does not correspond to any major global food related day and is included only as a distractor.
November 4 is also not connected with FAO or with this specific United Nations observance.

Common Pitfalls:
A frequent error is to confuse World Food Day with World Nutrition Day, World Health Day, or other health and development observances that fall in different months. Another pitfall is to remember only that the day is in the second half of the year and then guess among several October and November options. To avoid this, create a strong link in your mind between FAO, its founding in 1945, and the date October 16, so that the association becomes automatic during exams.

Final Answer:
The correct date is October 16.