Identify the Polynomial as a Monomial, Binomial, Trinomial, or None $$- 5 z ^ { 4 } + 3 z ^ { 3 } + 6 z ^ { 2 } + 9$$

Multiple Choice

Identify the polynomial as a monomial, binomial, trinomial, or none of these. Give its degree.
- $$- 5 z ^ { 4 } + 3 z ^ { 3 } + 6 z ^ { 2 } + 9$$

A) Trinomial, degree 4
B) None, degree 4
C) Binomial, degree 10
D) Trinomial, degree 9