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").

Fact1: wind and rain cause erosion, Fact2: Water, in the form of rain, is the most effective agent of erosion., Question: What causes erosion the most? (A) streams (B) motion (C) LEDs (D) water (E) Roads (F) rivers (G) Winter (H) wind
D

Fact1: Fertilization takes place inside the female organism., Fact2: Each eyed egg is a fertile egg., Question: What do female organisms produce? (A) honey (B) electricity (C) apples (D) nectar (E) plants (F) eggs (G) anger (H) adults
F

Fact1: harming an animal species causes that animal 's population to decrease, Fact2: Habitat loss is the major reason for the decrease in the bird population., Question: What has caused harm to the bird population? (A) feral dogs (B) migration (C) habitait loss (D) amoebae (E) hypothyroidism (F) fuel emmisions (G) Pesticides (H) viruses

C