Joining together two COMPLETE phrases.
When joining together two sentences with a conjunction, you would use a comma.
It wouldn't be used to describe a list or show that someone is stuttering.
I hope this helps!
~cupcake
Use your calculator wisely
Answer:
C: No, the sample size for drug Y is large enough, but the sample size for drug X is not
sculpture changed in style significantly over the span of 3000 years is incorrect
