Which expression represents the composition f(g(h( for the functions below?

f(x) = 2x + 1
g(x) = 4x^2
h(x) = x^2

a- 4x^4
b- 8x^4 + 1
c- 8x^2 + 1
d- (8x^2 + 1)^2

Answer asap and if you do you will get brainliest. catherine buys a gallon of ice cream from the store. after taking it home, she eats a fifth of a gallon of ice cream. her sister eats some of the ice cream as well. if two-thirds of the original amount of ice cream is left, then what fraction of a gallon of ice cream did her sister eat?