(A)  :   Collision between two fundamental particles is elastic.
(R) :   Fundamental particles lose their shape in collision

• A

  Both ‘A’ & ‘R’ are true and ‘R’ is the correct explanation of ‘A’

• B

  Both ‘A’ & ‘R’ are true and ‘R’ is not the correct explanation of ‘A’

• C

  ‘A’ is true and ‘R’ is false

• D

  ‘A’ is false and ‘R’ is true