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: a glacier causes mechanical weathering, Fact2: Largest of the glacier-formed lakes is Karakul., Question: What can be formed by mechanical weathering? (A) NaCl (B) white (C) rock (D) tube (E) soils (F) Roads (G) Lakes (H) sand

Ex Output:
G


Ex Input:
Fact1: a seismometer is used to measure the strength or magnitude of an earthquake, Fact2: Earthquakes are measured on a scale of 1 to 10., Question: How do we grade earthquakes (A) Seisometers (B) Cladistics (C) feedback (D) Measuring the ground (E) Check out the sky (F) classified (G) Taking temperature (H) the Himalayas

Ex Output:
A


Ex Input:
Fact1: air pollution can cause the pH of soil to decrease, Fact2: Some soils are more sensitive than others to the acid dropped by air pollution., Question: some soils are more sensitive than others to a lowered what (A) p53 (B) HPV (C) CO2 (D) wolf population (E) light level (F) pH (G) sea level (H) dam

Ex Output:

F