Fishers utility function for trout t and salmon s is given

Question

Fisher's utility function for trout (T) and salmon (S) is given by U = ST, where the MU_T = S and MUs = T. Which set of consumption bundles lies on the same indifference curve?

A. bundles of (S = 5 and T = 5) and (S = 25 and T = 1)

B. bundles of (S = 2 and T = 4) and (S = 3 and T = 3)

C. bundles of (S = 10 and T = 2) and (S = 5 and T = 1)

D. bundles of (S = 8 and T = 6) and (S = 7 and T = 10)