What is the primary role of independent monitoring bodies overseeing prisons? (pick one of the following)

a)It is to ensure appropriate independent oversight of prisons to prevent human rights abuses

. b)It is to ensure that the international treaty obligations of a State, such as in relation to the Convention on the Prohibition of Torture, are being adequately complied with.

c)It is to ensure the fair and humane treatment of prisoners, such as the conditions in which they are kept, the nature of disciplinary and grievance procedures, their access to adequate healthcare, etc.

d)All of the answers above.