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.

Choose your answer: based on the paragraph above can we conclude that "Smoke smell is undesirable."?

Choices: a). Yes; b). It's impossible to say; c). No;
I think the answer is