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: Female monotremes lack a uterus and vagina., Fact2: Monotremes are mammals that lay eggs., Question: What do some female mammals lack? (A) epidermal (B) vision (C) uterus (D) alleles (E) fur (F) a cuticle (G) eardrum (H) alveoli

Ex Output:
C


Ex Input:
Fact1: better senses have a positive impact on an animal 's survival, Fact2: All dogs are animals ., Question: what can have a positive impact on survival with better senses? (A) pugs (B) deer (C) pigs (D) mice (E) dog (F) cats (G) bird (H) cows

Ex Output:
E


Ex Input:
Fact1: the color of leaves on deciduous trees usually changes in the autumn season, Fact2: Fall colors begin as deciduous trees lose their leaves., Question: Fall begins as deciduous trees lose their leaves when? (A) It becomes dormant (B) Plant growth is reduced (C) in the autumn season (D) deforestation (E) Physical weathering (F) in the winter season (G) in the spring season (H) in the freezing season

Ex Output:

C