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 plague and many people died.
Codes:
(a) Both A and R are individually true but 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