フリー問題

問題文

A session issues SET NAMES 'utf8mb4' right after it opens, while the schema in use was created with another character set. Which system variable still reports the character set of that schema?

選択肢

1. The server therefore leaves character_set_results at the value that the schema definition carries.
2. The server therefore leaves character_set_connection at the value that the schema definition carries.
3. The server therefore leaves character_set_database at the value that the schema definition carries.
4. The server therefore leaves character_set_client at the value that the schema definition carries.