A.Determine whether the given polynomial is monomial,binomial,trinomial,or multinomial. Write A if it is monomial,B if it is binomial,C if it is trinomial,and D if it is multinomial.

____1.2x²- 7x + 4

____2.-9x

____3.4x³-7x²+ x-4

____4.5x-10

____5.3x-x³+2x⁵-5​