The measure of an angle is 4y°. Find the measure of its supplement.
A(180 + 4y)°
B(180 - 4y)°
C(90 + 4y)°
D(90 - 4y)°
A(180 + 4y)°
B(180 - 4y)°
C(90 + 4y)°
D(90 - 4y)°