A rectangular plot of land has a 40-yd diagonal and an area of 768 yd². Find the dimensions of the plot of land.
a. The plot of land is 4 yd by 192 yd.
b. The plot of land is 8 yd by 96 yd.
c. The plot of land is 24 yd by 32 yd.
d. The plot of land is 8 yd by 32 yd.