The correct answer is C. is not required to follow the Bill of Rights.
Unincorporated territories apply the US Constitution only partially. While their residents have fundamental rights applied in matters of law, other constitutional rights are not available, so they are not covered by the full American Bill of Rights.
Residents of the major unincorporated territories are only required to pay federal income taxes if they work for the federal government. The rest of the residents only have to pay federal payroll taxes.