Assertion A: For a given depth of cut, the output of a power shovel can be increased by decreasing the angle of swing Reason R: If the angle of swing is decreased, the cycle time will be decreased_______________?
A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not the correct explanation of A
C. A is true but R is false
D. A is false but R is true