JEE Main Physics question

Two spheres A and B of masses m₁ and m₂ respectively collide. A is at rest initially and B is moving with velocity v along the x-axis. After collision, B has velocity v/2 in a direction perpendicular to the original direction. The mass A moves after collision in the direction [CBSE PMT (Prelims) 2012]

• (A)Same as that of B
• (B)Opposite to that of B
• (C)θ = tan⁻¹(1/2) to the x-axisCorrect
• (D)θ = tan⁻¹(−1/2) to the x-axis