Read the given Assertion (A) and Reason (R) carefully and select the correct option.
(A): Weakening of springs in PMMC is due to aging and temperature.
(R): Permanent magnets used in PMMC instruments tend to lose their strength over time.
1
A is false, but R is true
2
Both A and R are true, but R is not the correct explanation of A.
3
A is true, but R is false.
4
Both A and R are true, and R is the correct explanation of A.