Dad bought a truck ! ( I do n't think I mentioned this ... ) A " new to him " truck which is actually from like the 80s or something . He had me drive him out to pick it up .

OPT: (a). to make sure the seller did n't take advantage of him at his old age. (b). None of the above choices .. (c). Dad has a suspended license from a recent DUI. (d). He needed a ride so he could drive home with the new car.
Answer the following question: Why did dad need help with the new car ?
(d).