The child was asked where his ear is, what did the child respond with?
Options:
- person's head
- serial killer's bedroom
- ground
- side of head
- missing
Let's think now! Step-by-step reasoning:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Every human have ears on both sides on their head and children are human.
So, the final answer is side of head.