Add or subtract as indicated.(9n6 - 2n5 + 5) + (7n6 - 4n5 - 2)

A. 13n11
B. 16n6 - 6n5 + 3
C. 16 - 6n6 + 3n5
D. 12n6 + 5n5 - 4


Answer: B

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