Fishing columnist: When an independent research firm compared the five best-selling baits, it found that Benton baits work best for catching trout. It asked a dozen top anglers to try out the five best-selling baits as they fished for speckled trout in a pristine northern stream, and every angler had the most success with a Benton bait. These results show that Benton is the best bait for anyone who is fishing for trout. Each of the following describes a flaw in the reasoning in the fishing columnist's argument EXCEPT: ['The argument overlooks the possibility that two best-selling brands of bait may be equally effective.', 'The argument overlooks the possibility that what works best for expert anglers will not work best for ordinary anglers.', 'The argument overlooks the possibility that the relative effectiveness of different baits changes when used in different locations.', 'The argument overlooks the possibility that some other bait is more successful than any of the five best-selling baits.']