Answer:
A contract is void in the following situation:
A thirty-six-year-old man under a court-ordered guardianship for mental incompetency.
Step-by-step explanation:
Option C is presenting a situation where the person who is signing the contract have a legal paper where it is stated that he is not able to make any kind of decision by himself and any signs that he makes will be invalid since his guardian is the one that must sign the contract on behalf of the thirty-six year old man.