In 1976 New Jersey Voters Passed a Referendum to Legalize

In 1976 New Jersey voters passed a referendum to legalize gambling.Several gambling casinos opened in Atlantic City beginning in 1978 and were initially very profitable, attracting people from the Mid-Atlantic and Northeastern states.Entrepreneurs in these states were unable to compete with the Atlantic City casinos because casino gambling was illegal in their states.For these entrepreneurs in the other states, the barrier to entry they were facing was

A) due to economies of scale.
B) due to ownership of a key resource.
C) government imposed.
D) self imposed.