Choose from options: Determine if the sentence is true based on the text below:
Older books retain more smoke smell than newer books.

How to get rid of smoke smell<br>Let the book air out. Gently hang an open book over a railing or on a clothesline outside for a few hours to a day. This should cause the smell to decrease.
Possible answers:
 - Yes
 - It's impossible to say
 - No