A) 288
B) 1
C) 12
D) 17
E) 2
Correct Answer: E
Solution :
\[n(A)=4\], \[n(B)=3\] \[n(A)\times n(B)\times n(C)=n(A\times B\times C)\] \[4\times 3\times n(C)=24\] Þ \[n(C)=\frac{24}{12}=2\].
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