Phobia is an irrational and inappropriate fear of an object or environment. Once faced with such an object or environment, phobia patients develop an extreme sense of fear, even though there is no danger at the time.
According to the above definition, which of the following options is phobia?
Every time I see pictures of the deep sea, Xu feels like he is in the deep sea, surrounded by dark and deep water. He felt short of breath and his heart beat faster and was too afraid to look at the pictures again.