Given below are two statements  : one is labeled as  Assertion (A) and the other is labeled as Reason (R) 
Assertion (A) : When a fire cracker (rocket) explodes in mid air, its fragments fly in such way that they continue moving in the same path, which the fire cracker would have followed, had it not exploded. 
Reason (R) : Explosion of cracker (rocket) occurs due to internal forces only and no external forces acts for this explosion. 
In the light of the above statements, choose the most appropriate answer from the options given below :