Find a Polynomial That Represents the Perimeter of the Rectangle $5 x - 18$

Multiple Choice

Find a polynomial that represents the perimeter of the rectangle in the picture, if a = 4, b = 2 and c = 7.

A) $5 x - 18$
B) $10 x - 18$
C) $10 x + 18$
D) $180 x$
E) $20 x + 36$