Determine Whether the Function Is a Polynomial Function $$f ( x ) = 10 x ^ { 4 } + 7 x ^ { 3 } + 5$$

Multiple Choice

Determine whether the function is a polynomial function.
- $$f ( x ) = 10 x ^ { 4 } + 7 x ^ { 3 } + 5$$

A) 4
B) 8
C) 7
D) 10