An administrator has implemented the following LPARs on a Power 570 with 32 GB memory with 512 MB remaining for allocation： LPAR 1 memory ： min = 10 GB des = 15 GB max = 24 GB LPAR 2memory ： min = 10 GB des = 15 GB max = 24 GB The administrator receives a request to add 2 GB to LPAR 1. The only way to do this is by moving memory from LPAR 2 to LPAR 1. The administrator attempts to move the memory， but the operation fails. The administrator can however allocate 512 MB that is free to LPAR 1 on the 570. What is the most likely cause of this failure when dynamically moving memory？（）

A. Maxperm% is set too low on LPAR 2
B. Insufficient paging space on LPAR 1
C. Service IB
DRM is unavailable on LPAR 1
E. Insufficient pinnable memory frames available on LPAR 2