I've used a formula (= Possible Major) which uses range names to return the
intersect of two named ranges, where Possible is one named range and Major is
another.

This works fine if I type the formula in directly but I want to return the
value from the cell references instead i.e. I have two drop downs for data
validation so the user can select Possible in column C and Major in column D.
I am therefore trying to use =C11 D11 which I hoped would be 'translated' to
=Possible Major and therefore give me the correct answer as if typed in
manually.

Does anyone know if it is possible to do this.
Thanks.