Read the statements below and choose the correct option:

Assertion (A): The Ajanta caves were excavated in two principal phases, an early phase in the 2nd–1st centuries BCE and a later phase in the 5th–6th centuries CE.

Reason (R): All caves at Ajanta were built in a single period.

1. ABoth A and R are true, and R is the correct explanation of A.
2. BBoth A and R are true, but R is not the correct explanation of A.
3. CA is true, but R is false.Correct answer
4. DA is false, but R is true.