Question

Which sentence is a run-on sentence? A. People breathe oxygen; fish do, too. B. When you fish, do you use worms as bait? C. A giant clam grows huge, it can weigh hundreds of pounds. D. Have you seen starfish or jellyfish on the beach?

Answer 1

It's C because there are two independent/coordinate ideas without being linked by punctuation or other coordinating linkers (and, so, then, etc) .

Answer 2

C because It should be a semicolon instead of a comma.