Two particles of masses `m_(1),m_(2)` move with initial velocities `u_(1)` and `u_(2)`. On collision, one of the particles get excited to higher level, after absording enegry. If final velocities of particles be `v_(1)` and `v_(2)` then we must have

Options

A. `1/2m_1u_1^2+1/2m_2u_2^2=1/2m_1v_1^2+1/2m_2v_2^2-epsilon`
B. `1/2m_1u_1^2+1/2m_2u_2^2-epsilon=1/2m_1v_1^2+1/2m_2v_2^2`
C. `1/2m_1u_1^2+1/2m_2u_2^2+epsilon=1/2m_1^2v_1^2+1/2m_2^2v_2^2`
D. `m_1^2u_1 +m_2^2u_2-epsilon=m_1^2v_1+m_2^2v_2`