You would need to introduce a list.
For example you could have: My shopping list contains of; milk, bread, and yogurt.
Another purpose is to separate clauses.
The downfall... then the resolution
<em>Thank you for writing this very kind message! I know I speak for everyone when I say it is greatly appreciated. I myself am in high school but this site gives me a chance to help people who really need it and spread my knowledge. Have a great day and stay healthy!</em>
I think the answer would be D. Hope this helps
Proper nouns are names of people, places, rivers, etc. So, having that in mind, the correct answers are A) Fred, because that is the name of a human, and D) Colorado River, because that is the name of a river.