Which statement is true of a rectangle that has an area of $4 x^2+39 x-10$ square units and a width of ($x+10$) units?
AThe rectangle is a square.
BThe rectangle has a length of $(2 x-5)$ units.
CThe perimeter of the rectangle is $(10 x+18)$ units.
DThe area of the rectangle can be represented by $\left(4 x^2+20 x-2 x-10\right)$ square units.
AThe rectangle is a square.
BThe rectangle has a length of $(2 x-5)$ units.
CThe perimeter of the rectangle is $(10 x+18)$ units.
DThe area of the rectangle can be represented by $\left(4 x^2+20 x-2 x-10\right)$ square units.