单选题 Dogs seem to experience separation anxiety, which also indicates that they feel______to their owners.
【正确答案】 D
【答案解析】该句意为：狗似乎有离别焦虑，这也表明它们对主人恋恋不舍。hostility：不友好，敌意；objection：反对；reliance：依赖(接介词on)；attachment：附件，依恋，爱。