Which sentence is a run-on sentence?

A.
Sally Ride was the first American woman in space, she was a member of a shuttle crew.

B.
When John Glenn traveled on the space shuttle Discovery, he was 77 years old.

C.
John Glenn was an astronaut; he was the first American to orbit Earth.

D.
John Glenn first traveled into space in 1962, and he made his second space flight 36 years later.
i think it is b

Question

Which sentence is a run-on sentence?	
 
 A.
Sally Ride was the first American woman in space, she was a member of a shuttle crew.
 
 B.
When John Glenn traveled on the space shuttle Discovery, he was 77 years old.
 
 C.
John Glenn was an astronaut; he was the first American to orbit Earth.
 
 D.
John Glenn first traveled into space in 1962, and he made his second space flight 36 years later.
i think it is b

inowalst · Answer

Correct. There should be a period instead of a comma.

anonymous · Answer

thanks

inowalst · Answer

Actually, no. Look at your other options..

inowalst · Answer

Sorry about that. There's one that looks like it.

inowalst · Answer

Eliminate D because that's a complete sentence, not a run-on.