World Day Against Child Labour is observed by the International Labour Organization and the United Nations every year to raise awareness about child labour. On which date is World Day Against Child Labour celebrated each year?

Introduction / Context:
World Day Against Child Labour is one of the most important international observances related to social justice and human rights. It focuses global attention on the millions of children who are forced into work that is harmful to their health, education, and development. Examinations often test the exact date of this observance because it is closely linked with international labour standards and global campaigns against exploitation of children.

Given Data / Assumptions:

• The observance is named World Day Against Child Labour.
• It is an annual day linked to the International Labour Organization and the United Nations.
• The question asks for the calendar date, not the year.
• We need to pick one correct date from four options in different months.

Concept / Approach:
To answer date based general knowledge questions, it helps to connect the event with a simple memory cue. For World Day Against Child Labour, the key association is that it is observed on 12 June every year. Many competitive exam guides and international calendars list it on this exact date. The approach is therefore to recall the month and day that are linked with child labour awareness, then confirm that this choice matches one of the given options.

Step-by-Step Solution:
Step 1: Recall that World Day Against Child Labour is a mid June observance, not in May or October.Step 2: Among the options, identify which date falls in June.Step 3: Option B states 12 June, which matches the widely known date for this observance.Step 4: Check that the other dates are either in May or October and are associated with different international days.Step 5: Conclude that 12 June must be marked as the correct answer.

Verification / Alternative check:
An additional way to verify is to remember that World Day Against Child Labour was launched by the International Labour Organization in 2002 and has since been observed every year on 12 June. Governments, trade unions, employers organisations, and civil society groups often conduct campaigns and events specifically on this date. This consistent annual pattern across many years provides strong confirmation that 12 June is the correct date.

Why Other Options Are Wrong:
31 October is closer to the period when events such as United Nations Day and Halloween are observed, and it is not connected with child labour awareness.
12 May is used for other observances such as International Nurses Day, not for World Day Against Child Labour.
31 May is widely known as World No Tobacco Day, which focuses on smoking and health issues rather than child labour.

Common Pitfalls:
A frequent mistake is mixing up similar sounding social issue days, such as confusing child labour with human rights, education, or health related observances. Another pitfall is remembering only the month but not the exact day and then guessing between multiple options. To avoid this, it is useful to build a small table of major United Nations days and revise it regularly. Paying attention to the difference between 31 May and 12 June is especially important because both dates appear in many competitive exam questions, but they stand for very different campaigns.

Final Answer:
The correct date is 12 June.