This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
True about Incremental or Historic budget is: 
Select and explain. 
A. Baseline expenditure is automatically approved., B. Does not depend on data of previous budget., C. Proceeds from target to resource (reverse direction)., D. Not only the changes but every line of the budget must be approved.
A: Baseline expenditure is automatically approved.
Answer: A: Baseline expenditure is automatically approved. 
Explanation: PPBS (Planning Programming Budgeting System):