Write the Polynomial in Descending Order of the Variable X $5 x - 6 x ^ { 3 } + 1$

Write the polynomial in descending order of the variable x. If the polynomial is already in descending order, so state.
Give the degree of the polynomial.
- $5 x - 6 x ^ { 3 } + 1$

A) descending order, degree 4
B) descending order, degree 5
C) $- 6 x ^ { 3 } + 5 x + 1 \text {, degree } 3$
D) $- 6 x ^ { 3 } + 5 x + 1 , \text { degree } 4$