Given the following LSP configuration, which statement is true? （）

• A、The router will use path1 when it is available and stable.
• B、The router will use path3 when it is available and stable.
• C、The router will attempt to establish path2 only when path1 and path3 are down.
• D、The router will attempt to establish path1 only when path2 and path3 are down.