To deliver an item too big for his firm's delivery van, Lance borrows a box truck from Belinda's neighboring business and pays Belinda $$250$ to use the truck for the delivery. Lance's company is insured under a business auto policy. According to that policy, Belinda's box truck is categorized as a$($n$)$

$($Search Chapter $2)$

a$.$ nonowned auto.

b$.$ hired auto.

c$.$ temporary substitute auto.

d$.$ uninsured auto.