question: delicate:rough
choices.label: A B C D
choices.text: black:white rich:poor early morning:evening exuberant:aging
explanation: "delicate" and "rough" have opposite meanings. "black" and "white" are different colors. the two have no opposite meaning. "rich" and "poor" have opposite meanings. "early morning" and "evening" are different time periods. they do not have opposite meanings. "exuberant" and "aging" do not have opposite meanings. the opposite of "exuberant" is withering and declining, instead of "aging".
relation: delicate rough R1.2