Match the types of corrosion in Group 1 with their examples in Group 2.

Group 1	Group 2
P. Galvanic corrosion	1. Season cracking in brass
Q. Filiform corrosion	2. Nut-bolt assembly with gasket
R. Stress corrosion cracking	3. Brass fittings joined with lead-tin solder
S. Crevice corrosion	4. Painted food can

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

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

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

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

Answer: Option C