PMP Question on Project Selection

Can Some one Please answer these Questions..

Q1.  Here are a list of Projects ?

        Project       Investment Costs           Chance of Winning

        Proj A          100 $                                  30 %

        Proj B          200 $                                  40 %

        Proj C         300 $                                   50 %

Which one do you select ?

Q2. What does it mean when both Cost Variance CV and Schedule Variance SV are 0.. It can be On-Budget ..but that was not listed as an option