C. They help readers visualize complex and unfamiliar ideas.
Answer:
1. I can't buy that new dress. All my money is at home.
2. Some people prefer to pay for their stuff by check.
3. I am looking forward to my mom's birthday next May.
4. Whose book is that? Is it yours?
How long does it need to be?
1) What is a socket wrench?
2) Coach Miller, blew his whistle. The game continued.
3) Return my call immediately, This is an emergency!
4) This is a crosscut saw, this is a ripsaw, can you see the difference?
5) Saturn, the sixth planet from the sun, has many moons. How many does earth have?
6)Wow! My parents were really impressed!
7) Sarah, my twin sister, is going to college this year.