16 players \( \mathrm{P}_{1}, \mathrm{P}_{2}, \mathrm{P}_{3}, \ldots \ldots . \mathrm{P}_{16} \) take part in a tennis tournament. Lower suffix player is better than any higher suffix player. These players are to be divided into 4 groups each comprising of 4 players and the
\( \mathrm{P} \) best from each group is selected for semifinals.
W
Number of ways in which they can be divided into 4 equal groups if the players \( \mathrm{P}_{1}, \mathrm{P}_{2}, \mathrm{P}_{3} \) and \( \mathrm{P}_{4} \) are in different groups, is :
(A) \( \frac{(11) !}{36} \)
(B) \( \frac{(11) !}{72} \)
(C) \( \frac{(11) !}{108} \)
(D) \( \frac{(11) !}{216} \)
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