Assertion (A) : Muhammad bin Tughlaq left Delhi, and, for two years lived in a camp called Swarga-dwari. Reason (R) : At that time, Delhi was ravaged by a form of plague and many people died.

(a)

Both A and R are individually true and R is the correct explanation of A

(b)

Both A and R are individually true but R is not a correct explanation of A

(c)

A is true but R is false

(d)

A is false but R is true