In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").

Ex Input:
Fact1: if soil is permeable then water easily flows through that soil, Fact2: Sandy soils are permeable., Question: Water easily flows through what? (A) streams. (B) streams (C) coral reefs (D) sandy soils (E) aqueous solution (F) swamp vegetation (G) calcite (H) Sediment

Ex Output:
D

Ex Input:
Fact1: if all members of a species cannot produce offspring then that species will likely become extinct, Fact2: Avian species are less likely to become extinct if they are common across large ranges., Question: Avian species are less likely to end up extinct if they what? (A) single-celled organisms (B) important habitats (C) abandon habitats (D) stop reproducing (E) animals with backbones (F) produce offspring (G) population movement (H) destroy offspring

Ex Output:
F

Ex Input:
Fact1: chemical weathering causes iron in rock to oxidize, Fact2: Also pyrite within the altered wall rock is oxidized to limonite, geothite and hematite., Question: chemical weathering causes what to change to limonite (A) pyrite (B) growth (C) Collagen (D) fibrous (E) cellulose (F) soil (G) cracks (H) calcite

Ex Output:
A