Simplify the following text for a Grade 11 native English-speaking person.
Original: Because of the variety of sizes of their vehicles , car rental agencies may also serve the self-moving industry needs , by renting vans or trucks , and in certain markets other types of vehicles such as motorcycles or scooters may also be offered .
Simplified: Because of the variety of sizes of their vehicles , car rental agencies may also serve the self-moving industry needs , by renting vans or trucks .