c on the first one and a on the 2nd
D. Sarcastic
The authors best describes the passage in a sarcastic tone.
The factors that will influence one's decision will depend on certain factors such as affordability & value, comfortability and ergonomics, performance of the car to conform to the owner's thrill-needs. These are all just ideas, the important thing is that they have to link to what the customer needs.
Many of the natives died from overwork and disease.