応じる
おうじる · oujiru · JLPT N3 · verb-ichidan
to respond
Sounds like Oh, sure! — what you say when you comply with a request
応 means respond, as in 反応 (reaction), 対応 (handling) and 応答 (reply). Add the verb ending じる and you get to respond, or to go along with what is asked: 要求に応じる, to meet a demand.