The statement which best explains the inconsistency in writing is - Plus, cell phones are great for taking pictures with friends.
Step-by-step explanation:
The passage is about how important is the use of cell phones when it comes to school, and whether children should be allowed using the cellphones. Everything is properly explained in the paragraph, except one statement.
The line, ‘Plus, cell phones are great for taking pictures with friends’ is simply inconsistent and discordance. This type of statements can result in inappropriate behavior among the children. School in a place where students come to learn and educate themselves, not to click pictures.