The Independence Day of Pakistan is celebrated on 14 August. This day marks the anniversary of Pakistan`s independence from British rule in 1947. Option 1, 15 August, is actually the date of India`s Independence Day. Option 2, 4 July, is the date when the United States of America celebrates its Independence Day. Option 3, 16 August, is not the correct date for Pakistan`s Independence Day. Therefore, option 4, 14 August, is the correct answer. It is important for students to remember this date and understand the significance of this national holiday in Pakistan.