Regarding the questions of capacity management categories, analyze the following sentences:
I- Planning, estimation, and forecasting are categories of capacity management.
II- The constant capacity management category advocates that demand variations should be ignored.
III- The constant capacity management category advocates that capacity variations should be ignored.
IV- Constant capacity, demand monitoring, and demand management are categories of capacity management.
Choose the CORRECT alternative:


A The sentences I and IV are correct.
B The sentences II and III are correct.
C The sentences II and IV are correct.
D The sentences II, III, and IV are correct.