Liz is shopping for a new video game system. The regular price at store A is $289. The regular price at store B is $309. The regular price at store C is $309. This week only, store A is selling their game systems for 15% off. Members of the rewards program at store B will receive 30% off the original price of the game system, but Liz is not a member. A membership costs $29.99. Store C is offering $50 off of all games systems priced over $250. Where should Liz purchase her game for the best deal? *