Which of the following sentences contains a compound subject? a. Aria and Synco danced with each other until dawn.
b. Sierra is a creative welder, and her art is the best in the valley.
c. Gregorovich shows a quick grasp of computer programming.

a. Aria and Synco danced with each other until dawn.

Explanation:

the subject of a sentence can be more than one thing: aria and synco

hope this helped you

life 2200 right now look pretty good because on how quickly humans are advansing, life will be a breeze. most by by then would have out lawed disese.most wouldn't have to work anymore beacuse everything would be free. the econamy for most countires would be really good, also by then u.s.a would have probably would have expaned its borders.

so that counculeds my thoghts of how 2200 is you for reading