Perform the Indicated Operation. Simplify If Possible

Perform the indicated operation. Simplify if possible.
-Express the perimeter of the rectangle as a fully simplified rational expression. 10 - 2x inches
X + 2
12x + 10 inches
X + 2

A) 100x + 100 in.
B) 20 in.
C) 10 in.
D) 10x in. x²+ 4x + b2