How to smooth frizzy hair<br>Wash with a moisturizing shampoo. Frizz is often caused by dryness, so it's important to restore moisture to your hair in the shower. Always use a sulfate-free shampoo.

Based on that paragraph can we conclude that this sentence is true?
Not having enough moisture in one's hair can cause it to become frizzy.

Options are:
i. Yes
ii. It's impossible to say
iii. No