choices.label: A B C D
choices.text: inner angle:outer angle addition and subtraction:multiplication and division abscissa:ordinate percent:percentage
explanation: a "divisor" is also called a "denominator". "inner angle" and "outer angle" are opposite and are of the same kind. "addition and subtraction" and "multiplication and division" are the same kind but have different meanings. "abscissa" and "ordinate" are the same kind but have different meanings. "percent" is also called "percentage".
relation: divisor denominator R2.1
relation: inner angle outer angle R2.4
relation: addition and subtraction multiplication and division R2.4
relation: abscissa ordinate R2.4
relation: percentage percent R2.1