The correct option is C 05:35
If the given time is lying within 12:01 am and 12: 59 pm, then there is no change while converting it from 12-hour format to 24-hour format.
If the given time is between 12:59 pm and 12:00 am (midnight), we add 12 to the given time to convert it from 12-hour format to 24-hour format.
Thus, 05:35 am, which comes between 12:01 am and 12:59 pm reads as 05:35 itself in the 24-hour format.