Add the Polynomials $$\left( 5 x ^ { 2 n } - x ^ { n } - 1 \right) + \left( x ^ { 2 n } + 4 x ^ { n } + 10 \right)$$

Multiple Choice

Add the polynomials. Assume all variable exponents represent whole numbers.
- $$\left( 5 x ^ { 2 n } - x ^ { n } - 1 \right) + \left( x ^ { 2 n } + 4 x ^ { n } + 10 \right)$$

A) $4 x ^ { 4 n } - 5 x ^ { 2 n } - 11$
B) $6 x ^ { 2 n } + 3 x ^ { n } + 9$
C) $5 x ^ { 2 n } + 4 x ^ { n } + 10$
D) $6 x ^ { 4 n } + 5 x ^ { 2 n } + 11$