Which of the following sentences is written correctly? a-although he didn’t invent the automobile, henry ford developed affordable vehicles that could be mass-produced. b-their were so many people who wanted the vehicles that henry ford built a larger factory in highland park michigan. c-when was the assembly line with conveyor belts first used to assemble the vehicles. d-cars aloud people to move away from cities that were filthy with manure from horses. e-the cars on the road was less dangerous then the horses in the city that trampled people and caused accidents.