GDPRquiz of the week

What information must joint controllers make available to the data subject regarding their roles and relationships in the joint controllership agreement?
The joint controllers must provide the data subject only with the information about the identity of the joint controllers.
The controllers must make the essence of the arrangement available to the data subject.
The controllers do not have provide data subjects with any information regarding their roles and relationships.
The joint controllers must publish the concluded arrangement, and make it available for the data subject.