Assertion: The periodic time of a hard spring is less as compared to that of a soft spring.
Reason: The periodic time depends upon the spring constant, and spring constant is large for hard spring

• A

  If both statement I and statement II are true and statement II is the correct explanation of statement I.
   

• B

  If both statement I and statement II are true but statement II is not the correct explanation of statement I.
   

• C

  If statement I is true but statement II is false 
   

• D

  If both statement I and statement II are false