问题：

[单选题]You are investigating the performance of the serve

AIncrease the value of table_definition_cache

BIncrease the value of table_open_cache_instances

CDecrease the value of table_open_cache_instances

DIncrease the value of table_open_cache

EDecrease the value of table_definition_cache

FDecrease the value of table_open_cache