A particle of mass m collides inelastically with another particle of mass 3m which is at rest. After the collision first particle comes to rest. Then choose the wrong answer

• A. coefficient of restitution between the particles is \[1/3\]
• B. loss of kinetic energy during collision is \[\left( 1/3 \right)m{{v}^{2}}\]
• C. velocity of second particle after collision is\[v/3\].
• D. all of these