Correct answer is B - here is an extract from the workbook:
For a project to be following PRINCE2, as a minimum it must be possible to demonstrate that the project:
•is applying PRINCE2’s principles
•is meeting the minimum requirements set out in the PRINCE2 themes
•has project processes that satisfy the purpose and objectives of the PRINCE2 processes
•is either using PRINCE2’s recommended techniques or using alternative, equivalent techniques.