Which passage from the article best supports the idea that worm charming can be a profitable business? A.On a typical morning, professional charmers may collect about 4,000 earthworms, which are sorted into buckets of 50 and sold for freshwater fishing bait. B.And these events get competitive, pitting grunters against each other to determine who has the best worm-charming skills. C.There's even a Guinness World Record for the most worms charmed from the soil, set by a 10-year-old girl in the UK in 2009. D.Some grunters stick a running chainsaw into the ground. Others use knitting needles or pitchfork tines.

A.On a typical morning, professional charmers may collect about 4,000 earthworms, which are sorted into buckets of 50 and sold for freshwater fishing bait.