Add or Subtract as Indicated $\left(5 n^{5}+9 n-9 n^{3}\right)+\left(-3 n^{3}+8 n^{5}+4 n\right)$

Multiple Choice

Add or subtract as indicated.
- $\left(5 n^{5}+9 n-9 n^{3}\right) +\left(-3 n^{3}+8 n^{5}+4 n\right)$

A) $14 \mathrm{n}^{9}$
B) $13 n-12 n^{5}+13 n^{3}$
C) $13 n^{5}-12 n^{3}+13 n$
D) $17 n^{5}+2 n^{3}-5 n$