What Is the Underlying Issue of Sex Trafficking That Makes

What is the underlying issue of sex trafficking that makes it so difficult to protect sex workers and inhibit the industry?

A) The reluctance of so many nations to legalize sex work
B) The reluctance of so many nations to declare sex work illegal
C) Policy frequently ignores sex workers' agency, producing a situation in which the program for change corresponds more to the aims of policymakers than to the needs of sex workers.
D) The global capitalist economy that forces some people to become sex workers and move to nations where restrictive immigration laws prevent them from obtaining other kinds of work