Consider the following statements Assertion (A) : Stress is the internal force per unit area of a body. Reason (R) : Rubber is more elastic than steel. Of these statement

Options :

1. Both A and R are true and the R is a correct explanation of the A

2. Both A and R are true but the R is not a correct explanation of the A

3. A is true but the R is false

4. Both A and R are false