Option A: 2 pack the first week, 8 packs the second week, 32 packs the third week, 128 packs the fourth week and so on for 6 weeks
Option B: 2500 packs of the newest set of "Magic the Gathering" cards now.
Part A: To obtain the most packs after 6 weeks, Matt should choose option A or B? ______
Part B: What is the difference in the total number of packs between the two options? _______