SAT语法题The owners of stadiums that bear the names of now bank

SAT语法题
The owners of stadiums that bear the names of now bankrupt companies have a problem what to do about the names.
A.what to do about the names.
B.what they should do about the names.
C.deciding what to do about those names.
D.to decide as to whether the names should stay
E.should they change those names or not