When a visitor comes to your website and clicks on a call-to-action for a “complimentary guide,” what page should they be taken to next?

When a visitor comes to your website and clicks on a call-to-action for a “complimentary guide,” what page should they be taken to next?
  A)  A landing page with the headline “Download our free guide!”
  B)  A landing page with the headline “Download our complimentary guide!”
  C)  A Twitter search for people talking about the guide.
  D)  A thank you page with the headline “Thanks for downloading our guide!”