question: What is the period of most rapid advancement?
choices.text: infancy navigation The Alps medicine astronomy protozoa puberty 86400
choices.label: A B C D E F G H
fact2: Rapid growth means rapid advancement.
combinedfact: Infancy is the period of most rapid advancement
formatted_question: What is the period of most rapid advancement? (A) infancy (B) navigation (C) The Alps (D) medicine (E) astronomy (F) protozoa (G) puberty (H) 86400