In how many ways can 15 indistinguishable fish be placed into 5 different ponds, so that each pond contains at least one fish ? (A) 1001 (B) 3876 (C) 775 (D) 200

In how many ways can 15 indistinguishable fish be placed into 5 different ponds, so that each pond contains at least one fish ? (A) 1001 (B) 3876 (C) 775 (D) 200
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(A) 1001
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