Orin Enters into a Contract with Natalie

Orin enters into a contract with Natalie.Later,Orin is adjudged mentally incompetent and Moseby is appointed Orin's guardian.Lila,Orin's daughter,attempts to void Orin's contract with Natalie on the ground of Orin's incompetency.The contract is

A) enforceable if Orin does not attempt to disaffirm it.
B) enforceable if Natalie is also incompetent.
C) enforceable if Moseby knew of the contract when he was appointed.
D) void.