A) $ ^{4}P_4 $
B) $ ^{4}P_3 $
C) $ ^{4}P_1{{+}^{4}}P_2{{+}^{4}}P_3 $
D) $ ^{4}P_1{{+}^{4}}P_2{{+}^{4}}P_3{{+}^{4}}P_4 $
Correct Answer: D
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Answer:
Solution:
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