The most effective method for gathering details about two subjects that one wants to compare is to LIST SPECIFIC QUESTIONS ABOUT BOTH SUBJECTS.
To effectively compare two people, one first has to write out the traits or the characteristics that one wants to focus on for the comparison. These characteristics should be listed out. Listing specific questions and answering those questions for each of the subject will clearly allow one to see the differences and the similarities between the concerned subjects.
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.
D because you are not becoming a citizen via birth, you need to complete and pass a test (i asked my immigrant mom)
I would write about something that you are passionate about.