A system administrator is creating four LPARs on a Power 550. The Power 550 has 64GB of memoryinstalled and 32GB activated. The system administrator sets the minimum dedicated memory to 8GB in the profile for each LPAR. After activating three LPARs, he is not able to activate the fourth LPAR. What is the likely cause of the problem?（）

A. The Power 550 is licensed for three LPARs only.
B. There is not enough memory to meet the minimum dedicated memory requirement for the fourth LPAA faulty memory DIMM is detected in the POWER5 550.
C. There is not enough memory to meet the minimum dedicated memory requirement for the fourth LPAThe HMC reserves some memory to perform logical partition tasks.
D. There is not enough memory to meet the minimum dedicated memory requirement for the fourth LPAThe hypervisor reserves some memory to perform logical partition tasks.