A) P-Metal tip, Q-Metal case, R-Filament, S-Thick wire
B) P-Thick wire, Q-Metal tip, R-Filament, S-Metal case
C) P-Filament, Q-Thick wire, R-Metal case, S-Metal tip
D) P-Metal case, Q-Filament, R-Thick wire, S-Metal tip
E) None of these
Correct Answer: C
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