Answer:
A. -1080
Explanation:
we know that 
one clockwise direction is -360 degree 
1 clockwise direction = -360 degree
we have to find for 3 rotations
so, we can multiply both sides by 3
and we get 
3*1 clockwise direction = 3*-360 degree
so, we get 
Angle for 3 rotations clockwise is 


So, 
The angle measure represented by 3 rotations clockwise is -1080