set names 'charset_name'命令，会同时设置以哪些系统变量的值

在MySQL中，执行set names 'charset_name’命令，会同时设置以哪些系统变量的值？ACD
A
character_set_connection
B
character_set_system
C
character_set_client
D
character_set_results
E
character_set_server
F
character_set_database

set names ‘charset_name’ 相当于同时执行了下列设置:
SET character_set_client = ‘charset_name’;
SET character_set_results = ‘charset_name’;
SET character_set_connection = ‘charset_name’;