The student found more information. Which piece of evidence supports the student's claim about the necessity of smart phones for teens in his essay?

A.
Smart phones are more expensive than regular cell phones and often require a long–term contract.

B.
Smart phones are considered much more modern and contemporary than more traditional flip phones or landline phones.

C.
Smart phones can be equipped with helpful applications for reliable research sites and can download historical documents, scientific articles, encyclopedia entries, etc.

D.
Smart phones come in a variety of colors, can be decorated according to the individual teen's taste, and can download many games to keep teens entertained.

C.

Smart phones can be equipped with helpful applications for reliable research sites and can download historical documents, scientific articles, encyclopedia entries, etc.