Adrian and Darah Entered into a Contract

Adrian and Darah entered into a contract.After the agreement was partially performed,Adrian successfully claimed that the contract is voidable.Which of the following statements may be TRUE?

A) Adrian,who is an Aboriginal living on reserve land,had created a contract to sell that land to Darah.
B) Adrian,who is 17 years old,had entered into a contract to purchase a set of computer games from Darah.
C) Adrian,who has been declared mentally incompetent by a court,entered into a contract to purchase food and shelter from Darah.
D) Adrian,who is an Aboriginal living in Toronto,entered into a contract to purchase recreational sporting goods from Darah.
E) Adrian,who is 17 years old,entered into a contract to obtain life-saving medical services from Darah.