Read this paragraph written by a student. Income is definitely something to consider when choosing a career. Civil engineers earn a yearly median income of $78,000, while pharmacists earn a yearly median income of approximately $112,000. However, there is more schooling involved with becoming a pharmacist. Pharmacists must earn a four-year professional degree in addition to a bachelor’s degree, and civil engineers need to have only a four-year bachelor’s degree. Because I enjoy school and would like to earn more money, I am leaning more heavily toward becoming a pharmacist.

Which statement most accurately describes the type of comparative structure used in this paragraph?

It is a point-by-point structure because two careers are compared one point at a time.
It is a point-by-point structure because one career is fully addressed before moving on to the next.
It is a subject-by-subject structure because two careers are compared one point at a time.
It is a subject-by-subject structure because one career is fully discussed before moving on to the next.