When he recently retired, Elwood started making birdhouses that he sells at a local farmers market. This is turning out to be a lucrative hobby. According to Elwood$$s $2022$ homeowners policy, it will qualify as a business if his birdhouse sales during the course of a year amount to more than

a$.$ $$2,000.$

b$.$ $$3,000.$

c$.$ $$4,000.$

d$.$ $$5,000.$