If the length of a rectangle in terms of x is 5x2+3x+6, and it's with is 7x+9, what is the perimeter of this rectangle perimeter:______units ?

A.10x^3+20x+30
B.10x^5+20x+30
C.10x^4+20x+30
D.10x^2+20x30

answer it well​
it's ok with no solution