Find the Degree of the Following Polynomial and Determine Whether $- 15 z ^ { 4 } + 5 z ^ { 3 } - 7 z ^ { 2 } + 9$

Multiple Choice

Find the degree of the following polynomial and determine whether it is a monomial, binomial, trinomial, or none of
these.
- $- 15 z ^ { 4 } + 5 z ^ { 3 } - 7 z ^ { 2 } + 9$

A) 4; trinomial
B) 10; binomial
C) 9; trinomial
D) 4; none of these