Retirement tax questions

Thank you but I'm still confused.

My employer will not issue me a corrected W-2 because the excess contribution came directly from the 457(b) plan administrator. I called the plan administrator and they told me that I would get the 1099-R next year for the little earnings I made. 

It asks me to check the code that applies to me but none of them do so what do I do? (see below)