confusions

hello
i,m in first yr of PGDIT course. now its tome for mr to choose the electives.

now i,m in confusion:
if any one can suggest me
my electives are :
1.advanced os
2.advanced networking
3.design patterning
4.agile programing
5.design pattern
6.security(cryptography)
7.enterprise
8.supply chain
9.software architecture
10.RUP and rational tools
11.VLSI/embedded technology

so kindly suggest me 2 to 3 subjects as i dont have too much knoledge abt these subjects

thankig you!
sumit