Answer:
The answer is
by including more detailed information about who did fieldwork for the Union and how it was done
C protagonist, because a foil is someone who contrasts greatly from the protagonist to highlight some of the protagonists characteristics, and the antagonist is basically a villain. Not many in an audience will sympathize with a villain, so the answer use be the protagonist, or the hero that faces obstacles and eventually overcomes them.
A ballerina can dance elegantly. Fortunately, giraffes have lemons on stones. Tomorrow, umbrellas vex watermelons.
I seriously wrote down the first word that came to mind....and BOOM. This is what happened lol. It sounds like some messed up news announcement Imao.
I hope this was something you were looking for, and it helped in some sort of way lol.
Answer: A.) At this point in his life he was familiar with the basic science of electricity.
Explanation: This answer makes the most sense out of all of them and the sentence gives reason enough to believe said character has some knowledge on the laws of electricity. Taking this based off the words "I was not unacquainted with the more obvious laws of electricity." Meaning said character had some prior knowledge, so we can assume he is familiar with the basic science of electricity.