Final answer:
The Wada Ghalughaara, or Greater Holocaust, took place on February 5, 1762, which is the correct answer to the student's question.
Step-by-step explanation:
The Wada Ghalughaara, also known as the Greater Holocaust, is a significant historical event in Sikh history. It refers to the massive massacre of Sikhs that took place under the orders of Ahmad Shah Durrani (Abdali) in Punjab, which occurred on February 5, 1762. The correct answer to the student's question is therefore option (a) February 5, 1762.