Answer:a. Many families have two or more cars, whereas having any motor vehicle was a luxury in the early 20th century
b. A cutting-edge television comes with HD, 3D, and SmartTV technology, while your grandparents likely enjoyed at most a black-and-white television in the early years
Explanation:our grandparents did not own multiple cars and those who owned a car were seen as the prestigious families especially for the people of colour having a car was something that they wouldn't even dream about and those who had it were considered to be truly rich.
In most countries they used horses to travel to other places or trains but owning a car was a luxury.
The types of televisions that we have have upgraded we can now record the shows and go back to watch it later , we have colour television we can even watch 3D now whereas the only thing they had was just a black and white television.