I think your using it right, you use a colon when you say you are going to write a list if that makes any sense
This one: "A. While playing my electric guitar, the amplifier went dead"
It seems to suggest that the amplifier was playing the guitar, which, of course is absurd.
The sentence could be changed in this way: "While I was playing my electric guitar, the amplifier went dead". Further, I think it is better use "when" instead of "while", but the important thing here is to note the dangling modifier.
A famous quote of MLK is: "Nonviolence is a powerful and just weapon. which cuts without wounding and ennobles the man who wields it. It is a sword that heals." This is why I believe that is the answer.
When community service is required for graduation it sparks creativity in students and propels them to create projects that may have a profound impact on the local community. Also, when students work with community leaders in public service they start to make connections that may help them later in their careers or life.
Do you have a picture of the question, or do you have anymore information to answer this? such as what type of graph they’re talking about, and what data.