In Order to Cut Hair in Pennsylvania, You Need to Complete

In order to cut hair in Pennsylvania, you need to complete a 1,250-hour barbering program that costs thousands of dollars as well as pass two exams. For those who want to cut hair as an occupation in Pennsylvania , the barrier to entry they face is

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