I am absolutely sure that thw best summary of "Martin Luther King Jr.: He Showed Us the Way\" by César Chávez is being revealed by the second option represented above. Only this one really makes sense and propely refers to the purpose of the story.
B. Nonviolence brings together people of good conscience, and its benefits are overwhelmingly positive compared to any act of violence.
I feel the answer is C.Setting up a home network system. Here are a list of reasons why.
A.inventing computer applications.(Isn't right because it is just talking about computer apps.)
B.creating new Internet sites. (this is more just stuff online and not needing to know about the rest of the computer system just to make a web site)
C.setting up a home network system.(you must know about everything from the router to the control panel and that what it is describing.)
<span>D.learning basic keyboarding skills.(all you need to now for this answer is just the keyboard stuff.)</span>