Help~

Guide me if you are NUS Student

1. Is it appropriate(safe) to take 22 MCs in 1st semester? I have choosen 5 modules (5-5-4-4-4), resulting to 22MCs.
2. What is the difference between CS1101S, CS1101X, Cs1101Y, CS1101Z?
3. I am from SOC, and if i fail MA1301 Placement Test and need to take this module, can i take it as breadth? or only as UEM?

I AM SO CONFUSED~!

And worse still.. i can't go for briefing coz i got graduation ceremony on the same day~

boohoo~