Which of the following are UNESCO recognised world heritage sites?
- Caves of Ajanta.
- Temple and Caves at Ellora.
- Mandapas of Mahabalipurarn.
- Caves of Kanheri.
Select the correct answer using the codes given below
(a) 1 and 4 (b) 1, 2 and 3 (c) 1, 3 and 4 (d) 2, 3 and 4