I'll give you a question, please answer with step-by-step reasoning process.
When a young child is sleeping what is something that is common for their age?\nOptions:\n- snoring\n- wetting bed\n- sleepwalking\n- talking\n- laughing loud

wetting bed
A young child have a sweat problem that causes things to become wet.

When a young child is sleeping then wetting bed is something that is common for their age.

.

Thus, the answer is wetting bed