There's a relation between the angle formed between the two hands in a clock and the time at that particular instance. It is as follows:
Angle = 30 H - 11/2 M
Where, H = Hours, M = Minutes
When the clock hands are exactly opposite to each other, the angle formed between them will be 180.
So, based on trial and error, by applying the above options in the equation, we can find out that the correct option is B