Initially, I thought the entire question was wrong. How could Pat get a discount from a different location if he hadn't rented more than 10 videos? But then I realized that missing piece of information was the key to the right answer -- it's not clearly specified that he's actually a Frequent Viewer, and the prompt further points us to the answer by specifying the Walnut Lane. In a way, my own confusion led me to the correct answer after I thought about it for more than 30 seconds.

Maybe we should form a group if we're all really this interested?