SC - Comparison with

 Many investors base their choice between bonds and stocks on comparing bond yields to the dividends available on common stocks.

(A) between bonds and stocks on comparing bond yields to
(B) wrong
(C) between bonds and stocks on comparisons of bond yields with
(D) wrong
(E) between bonds and stocks on comparing bond yields with

I felt that A is incorrect and so the options left were C and E. OF those I thought E was the better of the two because I did not consider 'on comparison of A's yeild with dividends from B' as correct. How wrong I was.

wrote SmashingGrace...
Investors base their choice [on what?] comparisons.  This clearly calls for a noun to follow.

wrote ashkg...
People "base their choice on comparisons " .....of X with Y.
Here X and Y are similar...so we use "comparison with"