The main idea of a paragraph is stated in the topic sentence.
Obstacles.
The word impediment means an obstruction, which is what an obstacle is.
This sentence is grammatically correct.
Answer:
C
Explanation:
The car belongs to both John and Marie and Jane and Lisa both have a motorcycle. So collectively the car is John and Marie's, while Jane owns a motorcycle and Lisa owns a motorcycle.
A radio ad communicates ideas audibly, not visually, so it cannot let people see images of the painter’s works.
A lot of people won’t be pulled in because they can’t see the paintings. I’d say this is the answer, since the other three don’t really fit. Radio ads can play more than once, most of them aren’t even funny, and they’re short, but they usually have an address or location attached.