Which one of the following is non-electrolyte?

Which one of the following is non-electrolyte?

مندرجہ ذیل میں سے کون سا غیر الیکٹرولائٹ ہے؟
Explanation

Urea is a non-electrolyte, meaning it does not dissociate into ions in aqueous solution.

It does not conduct electricity.