A Motion to Reopen is an appeal used if you feel that the problem with your application being denied had too little evidence, you can add more documents and resubmit the entire application.

A-1 Diplomats
A-2 Foreign Government
A-3 Servants
C Foreigners in Transit
D Crewman Visa
G Organization Staff Visa
I Visa Foreign News Media
N-8 Parent of SK3
N-9 Child of N-8
S Visa Informants to U.S. Govt.
T-1 Victims of Trafficking
U-1 Victims of Crime
Advance Parole