A court has determined that Jason is mentally incompetent, and has appointed a legal guardian for him. After the guardian is appointed, but not while Jason is with the guardian, Jason sees a home in which he would like to live, and signs a rental agreement to begin occupancy two weeks later. Jason's rental agreement is

void

voidable only if Jason does not understand the legal consequences of entering into the contract

valid if the landlord can prove that Jason was having a lucid interval when he signed the rental agreement

valid