Exam QSBA2018 topic 1 question 23 discussion

A hospital billing department is concerned with the performance of the cardiology and orthopedic departments. The billing department wants to add a visualization to an existing app to analyze billing for these two departments.
The business analyst must consider the hierarchy of:
✑ The department
✑ The physicians in each department
✑ The procedure performed by the physicians
What should the business analyst create to meet the requirements?
A.
✑ A scatter plot using alternate dimensions
✑ A bookmark for the physician
B.
✑ A bar chart with a cyclic group
✑ A bookmark for the physician
C.
✑ A bar chart using master items drill-down
✑ A bookmark for the departments
D.
✑ A scatter plot using set analysis
✑ A bookmark for the departments