2nd option, Not all situations are appropriate times to use cell phones. I took the test and it showed me that i got it right and this is the right answer you guys. Hope this helps!
Honestly I would choose A.
Answer:
look at explanation
Explanation:
to add emphasis = furthermore
to summarize = in conclusion
to show time = eventually
to give an example = such as
Hope this helps! If I am wrong or you need help please comment!