Find the incorrect pair

List-I	List-II
a. Western plateau	1. Purulia
b. Sandy Coastal plain	2. South 24 Parganas
c. Northern mountain	3. Darjeeling
d. Active Delta plain	4. North 24 Parganas

A. Paul Topirard B. Sir Herbert Risley C. G. S. Ghurye D. William Henry Sleeman

A. a-1 B. b-2 C. c-3 D. d-4

A. Shashanka B. Chandragupta C. Ghatotkacha D. Srigupta

A. Samatata B. Tamralipta C. Karnasuvarna D. Lakhnawati