Detailed Instructions: 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").
Q: Fact1: Infancy is the period of most rapid growth after birth., Fact2: While a baby is very young, during infancy, co-sleeping is very convenient for feeding schedules., Question: What have the period of most rapid growth after birth? (A) some prokaryotes (B) trees and flowers (C) very sick babies (D) tiny hairs (E) prokaryotic cells (F) very sad babies (G) eukaryotic cells (H) very young babies
A:
H