💡 Detailed Explanation
'Kikkou' refers to a state where two opposing forces or abilities are nearly equal, competing with no clear advantage. Choice 1 correctly describes the approval ratings of two political parties being evenly matched. Choice 2 describes internal conflict (葛藤), choice 3 compares value (匹敵), and choice 4 describes a clash of opinions (対立), none of which are appropriate uses of 'kikkou'.