Two particles of equal mass 'm' are projected from the ground with speed `v_(1)` and `v_(2)` at angles `theta_(1)` and `theta_(2)` at the same times as shown in figure. The centre of mass of the two particles.

Options

A. will move in a parabolic path for any values of `v_(1) , v_(2) , theta_(1)` and `theta_(2)`
B. can move in a vertical line
C. can move in horizontal line
D. will move in a straight line for any value of `v_(1) , v_(2) , theta_(1)` and `theta_(2)`