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: Annelids are worms such as the familiar earthworm., Fact2: An earthworm has five hearts., Question: One example of an annelid has how many hearts? (A) three (B) Five (C) white (D) warm (E) four (F) strong (G) long (H) small

Ex Output:
B


Ex Input:
Fact1: being exposed to wind can cause erosion of soil, Fact2: Soil Erosion Soil erosion is caused by disturbance of a land surface., Question: what can being exposed to wind cause? (A) a lot of human deaths (B) death and devastation (C) increase in carbon (D) forest is destroyed (E) a tree falling (F) disturbance of land surface (G) loss of sunlight (H) low tides

Ex Output:
F


Ex Input:
Fact1: heating salt water causes the water to evaporate while the salt remains, Fact2: Evaporation of the water leaves the salt on the surface., Question: heating salt water leaves the salt where? (A) solid, liquid, gas (B) on the surface (C) Solutions (D) epidermis and dermis (E) lowered energy cost (F) energy barrier (G) an object (H) near the shoreline

Ex Output:

B