Query about Question 1 from "TC and SE 4.3: Pairing Strategy Groups 1-4" [4521]

GRE GRE Verbal Problem Solving
1

https://www.gregmat.com/quizzes/quiz/tc-and-se-43-pairing-strategy-groups-1-4 (Question 1)

why is affectionate and benign a pair?

benign is harmless and affectionate is loving

2

Aside “harmless”, “benign” can also mean gentle/kind/kindhearted and therefore loving.