Motion In A Plane

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R

Assertion A : When a body is projected at an angle \(45^{\circ}\), it's range is maximum.

Reason R : For maximum range, the value of \(\sin 2 \theta\) should be equal to one.

In the light of the above statements, choose the correct answer from the options given below: