Final answer:
Five Guys opened its first location in 1986 and had expanded to five locations around the DC metro area by 2001, where they perfected their business model and began to build a cult-like following.
Step-by-step explanation:
The popular fast-food chain Five Guys began expanding in the DC metro area in the late 1980s. Jerry Murrell and his family opened their first location in Arlington, Virginia, in 1986. By 2001, they had opened five total locations around the DC metro area and had begun to cultivate a loyal, almost cult-like following for their burgers and fries. This success led to the start of franchising in 2003, which enabled a rapid nationwide expansion. The emphasis on fresh, hand-prepared food and customizable burgers played a significant role in their growing popularity.