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: ultraviolet light causes sunburn, Fact2: Serious skin cancer is caused by sunburns in childhood., Question: What can develop as a result of too much exposure to ultraviolet light in childhood? (A) Sunflower syndrome (B) influenza (C) Hearing loss (D) hyperthyroidism (E) disease (F) symptoms (G) Lung cancer (H) Skin cancer

Ex Output:
H


Ex Input:
Fact1: a light bulb is used for seeing in the dark, Fact2: Light is emitted by a light bulb., Question: What is required for seeing? (A) dark (B) sun (C) light (D) wind (E) retina (F) eyes (G) photons (H) copper

Ex Output:
C


Ex Input:
Fact1: Ancestors of hagfish are thought to have been the earliest vertebrates., Fact2: Vertebrates are animals with backbones., Question: Ancestors of hagfish are thought to have been the earliest (A) filter feeders (B) unicellular organisms (C) carrying offspring to birth (D) animals with backbone (E) last stage before adulthood (F) prokaryotic cells (G) To survive in their environment (H) inherited antigens + antibody

Ex Output:

D