Assertion: The conservation of kinetic energy in elastic collision applies after the collision is over and does not hold at very instant of the collision.
Reason: During a collision the total linear momentum is conserved at each instant of the collision.
A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true not but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false
D. If both assertion and reason are false.