Options:
A.
B.
C.
D.
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Earlier discussion
3 older comments kept for context.
banye Samuel chukwuebuka
correct answer is copper
isaac alamu
copper is the RIGHT ANSWER
Ejson
Brass is an alloy of Copper and zinc.
Bronze is an alloy of Copper and Tin.
Copper is common to both Brass and Bronze.
B is the answer.