Time of zero-hour in Parliament is:

The correct answer is (c). Zero Hour is a period of time in the Indian Parliament when any member can raise any issue of public importance. It is held from 11 am to 12 noon on every working day.

Option (a) is incorrect because the time of Zero Hour is from 11 am to 12 noon, not from 9 am to 10 am.

Option (b) is incorrect because the time of Zero Hour is from 11 am to 12 noon, not from 10 am to 11 am.

Option (d) is incorrect because the time of Zero Hour is from 11 am to 12 noon, not from 12 noon to 1.00 pm.