Acone’s height is reduced to 3/8 of its original length, and its radius is tripled. how has the volume of the cone changed?

Cone Volume = PI * radius^2 * height / 3

So if radius = 1 and height = 1 then volume = 1.0472

When radius = 3 and height = .375 then volume = 3.5343

Volume increases by 3.5343 / 1.0472 = 3 and 3/8

the correct answers i think are b. and d.

give me brainliest if it is correct!