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: Evolution occurs by a process called natural selection., Fact2: Adaptation is the result of natural selection., Question: What leads to evolution? (A) Plants growth (B) competition (C) Adatation (D) our star (E) Experimentation (F) Stagnation (G) environment (H) Information
C

Fact1: Infancy is the period of most rapid growth after birth., Fact2: Development means to get better, growth means to get bigger., Question: What is the period of most rapidly getting bigger after birth? (A) 86400 (B) infancy (C) adult (D) a hosta (E) pregnancy (F) adulthood (G) eight (H) angiosperm
B

Fact1: telephones are used for communication by two people by transmitting sound, Fact2: Loudspeakers then turn the signals into sounds., Question: What are used for communication by two people by transmitting signals? (A) electricity (B) satellites (C) air (D) phytoplanktons (E) unidirectional (F) telephones (G) the Sun (H) waves
F