The curves x=y2−4 and x=2y−1 enclose a region in the plane. When the area of this region is computed by integrating with respect to y, which of the following are the correct limits of integration?
a) y=−3 to y=1
b) y=1 to y=3
c) y=−1 to y=3
d) y=−1 to y=1