When is World Science Day for Peace and Development celebrated every year?

World Science Day for Peace and Development is officially celebrated on November 10th every year. This date was established by UNESCO in 2001 to promote the importance of science for peace and development. The correct answer is Option C (10th November) because it aligns with the globally recognized observance date set by international scientific organizations. Option A (30th August) is incorrect as it does not correspond to any major international science-related observance. Option B (4th November) is also wrong, as this date is not designated for World Science Day. Option D (11th October) is incorrect because it falls on the day after the actual celebration. Students should remember that November 10th is the fixed annual date for this important global event, making Option C the only accurate choice.