If a Court Has Declared Zeb Insane and His Sister

Multiple Choice

If a court has declared Zeb insane and his sister is appointed guardian,which of the following statements would be true?

A) Zeb's sister has the sole legal capacity to enter contracts on Zeb's behalf and any contract Zeb enters is void.
B) Zeb may enter contracts,but they are voidable by his sister.
C) Zeb's sister may enter contracts on Zeb's behalf,but only with Zeb's affirmance.
D) Zeb may enter contracts,but they may be disaffirmed by his sister.
E) Both Zeb and his sister have capacity to enter contracts,however,any contract Zeb enters may be disaffirmed by Zeb.