The correct answer to this question is A, 6. GCP stands for good clinical practice. It is a standard code of conduct which the International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Us, abbreviated ICH, provides. GCP is strictly enforced, and they have high standards. The guidelines tell how to conduct clinical trials and define the role of the conductor.
Performing quality endurance tests is how people ensure the instructions are being followed. Despite its strict nature, it has been seen as less moral than other guidelines due to conflicts of interest and disclosures. And Like the United States, the Europen Union also has such a set of instructions.