Observations (what you see that is important for a possible future inference) 1. Heard a siren 2: Smelled smoke
Inferences: Kristens house catches on fire and turns off the fire alarm.
Answer:He says that if I can do it and keep slavery then we'll keep slavery. ... make the gratification of their wicked desires profitable as well as pleasurable.
Explanation:
Its D: A subject for a student.
its the same relationship like a writer uses words to write and the student is a person who studies and to study you need a subject.
The other choices don't have the same relationship between them.