Based on your situation, the MCAD should be preferred.

I have no idea which C derivatives you've learned, but if you want to use the .NET Framework . . . C# is the best choice.

MCAD is the stepping stone towards to the MCSD.

There are some important aspects that you must pay more attentions when becoming a certificate pursuer.

1. The ability to read/learn the information from the official reference.
It should be masterful enough.

2. Be more proactively, especially in searching the related technical supports.
RTFM = Read The FuXXing Manual
STFW = Search The FuXXing Web

3. More practices

FYI, ~~~

PS: MCS"E" is an irrelevant certification based on your background.
MCSE is focused on:
Networking Design Solutions provided by Windows-platform
Networking Support Solutions provided by Windows-platform
. . . and most of all . . . it requires 7 exams to take . . .

Good Luck . . . the path towards the certification . . .