It doesn't contain any punctuation, first of all, and second, it doesn't have a subject. To be a sentence, it must contain a subject. It also must contain one main clause.
-DustinBR
7. The best time to plant flower seeds, of course, is just before a rainy season, not in the middle of a hot dry summer.
8. Our neighbor, Miss Allen, manages two apartment houses.
9. As a matter of fact, most horses can run four miles without having to stop.
10. The Comanches, like many nomadic tribes, once traveled throughout Kansas, New Mexico, Texas, and Oklahoma.
I wasn't sure about number 6.
Hope this helps,
Davinia.
The answer is c because it Makes more idk
