The question is about identifying the term used for comparing two things. The correct answer is 'A. Comparison' because it is the act of examining the similarities and differences between two or more things. 'B. Pardon' refers to the forgiveness of an offense, which is unrelated to comparison. 'C. Parcel' means a package or a portion of land, which is not related to the concept of comparison. 'D. Departure' means the act of leaving, which also does not relate to comparison.