Consider the following outline: I. Math A. Fractions B. Algebra C. Geometry II.? wich detail would appear next to the Roman numeral II on the outline?

An outline appears as an organized list of things that narrows down from a wide topic to a more detailed one. The first outline given is Math in which the second outline to be picked has to be more specific than general math. Since there are fractions in the given, the larger topic above fractions should be Algebra.