There are debates surrounding the order in which to pay off loans, one is the debt snowball (DS) (smallest to largest) the other is the highest interest first (HIF). Obviously the highest interest first is the most efficient, mathematically. However, the debt snowball method has merit as personal finance is so rooted in behavior, and by extension, psychology. So much so, that often times DSers may outperform HIFers despite mathematical disadvantages.
If your loans were not in deferment, the first choice would be easy pay off 1.e. first. Both methods would agree. However, they are in deferment so you have a choice to make now.
Do you intend to go crazy and pay these off ASAP or keep them around and pay them off when you have extra cash? If the ASAP way, then use the debt snowball. If you don't mind having 32k in debt, then use the HIF method. Do you want to be out of debt in 24 months or are you okay with still having 30k in debt at that time? A good barometer on where you stand is if you are willing to give up your weekends to work a second job. If the answer is yes, then the DS method is right for you.
The one thing that is clear, on 11/1, make loan 1.e. go away.
Also many people have trouble directing extra principle payments to their student loans or even specific loans. You may want to do a few small practice transaction on how to work the interface and how much trouble it is to do what you want.
As Matt points out in the comments, loan 1.e. may be accruing interest despite being in defferment. If that is the case, pay it off today!