an interior designer decorator a blank wall by hanging 6 canvas painting. each with an area of x square feet. the expression (165-6x) square feet represent the area of the wall that remains blank once the canvas paintings are hung on the wall.
which statement is true

A.-6x is a constant that represents that area of the blank wall taken up by the 6 canvas paintings.
B.-6x is a constant that represents the total area of the blank wall before any canvas paintings are hung on the wall.
C.-6x is a term that represents the area of the blank wall taken up by the 6 canvas paintings.
D.-6x is a term that represents the total area of the blank wall before any canvas paintings are hung on the wall.