Which solvent shoes the greatest resolution of the dyes?

Question

A student obtains the following Rf values for the seven dyes in the solvents noted

dye -> water -> acetonitrile -> ethyl -alcohol
B1 -> .57 -> .94 -> .52
B2 -> .36 -> .34 -> .26
R3 -> .42 -> .19 -> .30
R40 -> .48 -> .51 -> .33
G3 -> .31 -> .32 -> .39
Y5 -> .34 -> .44 -> .55
Y6 -> .46 -> .66 -> .46

Which solvent shoes the greatest resolution of the dyes and should therefore be used in the subsequent analysis of the student unknown.

For that solvent, which pair of dyes is likely to be most easily mis-reported?

Answer 1

Water

R3 and Y5