I applied for OPT on January 8th 2013. I got an RFE on 7/29/2013. USCIS asked me to submit documentation of below
1. Maitainence of status
2. Eligibility to pursue master's degree
3. Previous OPT
4.Previous CPT
5. Address Proof

I haven't taken OPT and CPT, This is my first OPT. I need your help for submitting documents for 1,2 & 5 and how to reply USCIS.