How to save frequent flyer miles about to expire<br>Shop through an airline portal. Almost every airline has online malls or portals where you can shop. You'll earn extra miles on your purchases, and the clock will " reset, " so you won't lose any miles because of inactivity.

Choose your answer: based on the paragraph above can we conclude that "Frequent flyer miles are sure to expire."?

Choose from:
 (a). Yes
 (b). It's impossible to say
 (c). No
I think the answer is
(b).