将下列动物进行分类，填入下表内：海马、鲸、娃娃鱼、蛇、蝙蝠、墨斗鱼、蜻蜓、珊瑚、企鹅、丹顶鹤、鸵鸟、白鳍豚、鸭嘴兽、蜥蜴、扬子鳄、金丝猴、金鱼．

—Will you be____this afternoon, Jack?

—It depends．I’m afraid I’ll be called by my boss．

A．available

B．accessible

C．convenient

D．suitable