Answer:
B
Explanation:
Studies show that adolescents now spend over seven hours a day using entertainment media. It's time they turned it off and got more exercise.
B. Roots
Roots are the smallest meaningful parts of words. For example the root word of aquamarine would be Aqua, which means water. So the root word can also give you a hint on the meaning of the word.
Hope this helps :)
I believe this is a dependant clause
