Two projectiles A A. R_A < R_B

B. R_A = R_B

C. R_A > R_B

D. the information is insufficient to decide the relation of R_A with R_B.

The Horizontal Range R is given by

Where, =initial velocity of the projectile, =gravitational acceleration and =angle of projection

Therefore, horizontal range R_A for projectile A is given by

Also, horizontal range R_B for projectile B is given by

Where =initial velocity of the projectile A and =initial velocity of the projectile B

Since, the initial velocities of projectiles A and B are not given; we cannot establish relationship between their horizontal ranges.