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There are 3 copies of each of 4 diffe...

There are 3 copies of each of 4 different books . The number of ways that they can be arranged in a shelf is

A

`(12!)/(3!)^(4)`

B

`(11)/((3!)^(2))`

C

`(9)/((3!)^(2))`

D

`(12!)/((3!)^(5))`

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The correct Answer is:
A
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