State Whether the Function Is a Polynomial Function or Not $$f ( x ) = x ^ { 4 / 3 } - x ^ { 5 } + 5$$

Multiple Choice

State whether the function is a polynomial function or not. If it is, give its degree.

- $$f ( x ) = x ^ { 4 / 3 } - x ^ { 5 } + 5$$

A) Yes; degree $4 / 3$
B) Yes; degree 4
C) Not a polynomial
D) Yes; degree 5