B. Keep it, because it advances the writer’s purpose of showing the appeal the Aibo had to its owners.
Explanation:
Answer B
Correct. The underlined text is a parenthetical element that advances the writer’s purpose of explaining the appeal of robots that look like animals. The description of the Sony Aibo as a “playful” robotic dog illustrates why owners felt attached to it.
I preferably think that background research helps identify many things such as history, records, events, and more which indicates how it relates to the topic
