Answer: Barbara Bush focused much of her energy on a cause near to her heart: literacy.
Explanation: In the first two options, the colon is being misused because it is fragmenting essential elements of a same clause (direct object "much of her energy" from complement "on a cause..." / prepositional phrase "on a cause" from prepositional phrase "near to her heart" modifying it.) In the third option, the comma should not be used to introduce the one-item list "literacy."
...Since like there is alot of stuff going on in the world today like violence and stuff maybe like how you would try to fix the problem.
is that the full question, or a true or false question?
Do you mean what is Danah Boyd's claim? And is "Blame Society Not The Screen" the title of the passage?
Answer: 2/g
Explanation: First cross out the two 3's then multiply by 2