A) \[6\cdot 7\cdot {}^{8}{{C}_{4}}\]
B) \[6\cdot 8\cdot {}^{7}{{C}_{4}}\]
C) \[6\cdot {}^{6}{{C}_{4}}\cdot {}^{8}{{C}_{4}}\]
D) \[8\cdot {}^{6}{{C}_{4}}\cdot {}^{7}{{C}_{4}}\]
Correct Answer: C
Solution :
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