Which two solid figures have the same volume?
a.an oblique solid with a base of 4 cm2 and a slant height of 8 cm
b.a cone with a base of 4 cm2 and a height of 8 cm
c.a rectangular solid with a base of 4 cm2 and a height of 8 cm
d.an oblique solid with a base of 4 cm2 and a height of 8 cm?