Add/Drop Classes

At this moment, when I am thinking which classes should I add in Sem A, I feel a little bit pressure cox I know I have to try my best to study this year.  No one want to see bad results in transcript.

Exam Coursework  Advanced Database System

70%   30%

Exam Coursework Multimodel Interface Design

40      60%

........?????????????=_= have to choose one of them.........

I like Advanced Database System, but I think Mulitimodel Interface Design is much more interesting.

.......how to make a choice..