Answer:
Radio
Step-by-step explanation:
From the question we are informed about local automobile service company who is interested in advertising but has a very limited budget. They would like to tailor their advertising toward individuals in the local area who own older domestic vehicles and may need services such as brakes, transmission, or other relatively major services. In this case, advertising medium that is best for this company is radio.
Advertising media can be regarded as a channel that is been used for communicating a promotional message to the outside world. These media could be through billboards, television advertisements or online banners and radio spots. Radio advertising can be regarded as a channel of buying commercials so that products or services can be promoted.
Advertisers will pay some charges to commercial radio stations for airtime , then , the radio station in exchange for this will broadcasts the advertiser's commercial all over the listening audience.