Determine the Degree of the Polynomial $- 3 a ^ { 4 } - 16 a ^ { 2 } + 8 a + 4 a ^ { 6 }$

Multiple Choice

Determine the degree of the polynomial.
- $- 3 a ^ { 4 } - 16 a ^ { 2 } + 8 a + 4 a ^ { 6 }$

A) 12
B) 6
C) 4
D) 13