Thomas presents a single page contract to his elderly father, which transfers title of his father's house to Thomas. Upon his father's reluctance to sign, Thomas takes his father's hand and literally forces his father's signature. In this case:

Select one:

a.

the contract is voidable at the father's option due to Thomas's undue influence.

b.

the transaction is void and without any legal effect.

c.

the contract is voidable due to the fraudulent method used to obtain the signature..

d.

the contract is invalid due to a lack of consideration.