Some applications running on an EMC Symmetrix VMAX array are experiencing poor performance.
A performance analysis reveals the following:
Write response time is impacted
Heat Map shows low front-end utilization
Heat Map shows high back-end utilization

What is the potential problem?

A.
Logical volume write pending limit has been reached

B.
System-wide write pending limit has been reached

C.
Flexible dynamic cache partitioning has been implemented

D.
Static dynamic cache partitioning has been implemented