answer choices; response options
Used in surveys, questionnaires, and tests to refer to the set of possible answers provided to respondents.
Please choose one from the answer choices in the questionnaire.
選択肢 is a general term for 'choices' or 'options', while 回答選択肢 specifically refers to the answer options in a survey or test.
Compound of 回答 (answer) and 選択肢 (choices/options).