Read the text and determine if the sentence is true (see options at the end):

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.

Sentence: Frizz is sometimes, but often less frequently caused by dryness.
Options:
[A]. Yes
[B]. It's impossible to say
[C]. No