For Two Groups of Novice Typists,the First Group Spends 90

For two groups of novice typists,the first group spends 90 minutes learning how to use a standard keyboard (the upper left row starts with "QUERTY") ,then spends 90 minutes learning a different layout (the upper left row starts with "RDOVAK") .The second group spends 90 minutes learning the RDOVAK keyboard (and never sees to the QUERTY keyboard) .Finally,each group is given a typing test on the RDOVAK keyboard.

A) The first group will perform better.
B) The second group will perform better.
C) Both groups will perform at the same level.
D) Why are there only three options? I think a third group is needed.