Match the alloy names listed in Group I with the main elements present in them listed in Group II.

Group I	Group II
P. Babbit	1. Fe-Ni
Q. Muntz metal	2. Ni-Cr-Fe
R. Invar	3. Cu-Zn
S. Inconel Group II	4. Sn-Sb-Cu

A. P-3, Q-1, R-4, S-2

B. P-3, Q-4, R-1, S-2

C. P-4, Q-1, R-2, S-3

D. P-4, Q-3, R-1, S-2

Answer: Option D