In 2020, Don Kesler had adjusted gross income of $50,000, including gross income from his hobby of $10,000. Expenses related to his hobby were as follows:

-Insurance: $1000

-Utilities: $500

-Rent: $2,200

What amount of hobby expense is deductible by Don as an itemized deduction?

a) 3700

b) 2700

c) 0

d) 1000

please explain- thank you!