No comma is necessary when connecting 2 clauses of the sentence, So,the correct answer is 'c'
Answer:
Just like word choice, writers should strive to vary their sentence structure to create rhythmic prose and keep their reader interested. Sentences that require a variation often repeat subjects, lengths, or types.
Answer:
I don't think any of these are common but I'll go with which is more likely to happen.
Programs freeze or quit unexpectedly.
The computer crashes or reboots itself.
Pages from a printer come out blank.
I think that's it, I'm not really sure but anything to help.
A little late there bud, but your answer should be D
