All solicitation must specify the North American Industry Classification System (NAICS) and size standard so that offerors can appropriately represent themselves as small or other than small. How are size standards usually stated?

Number or employees over past 12 months or average annual profit over the past five years

Number or employees over past 12 months or average annual profit annual receipts over the past three years

Number or employees over past 12 months or average annual profit over the past three years