Read the following passages and answer the questions that follow them, by choosing the correct options. It all began with a blister on my lower eyelid. I happened to rub it accidentally and it was painful. Soon after, blisters appeared on my hands and neck. My mother suspected that I was down with chickenpox and took me to the doctor. The doctor confirmed and said that I needed rest. He gave me a two-week medical certificate and some pills to keep the fever down. I had to stay in the house for two weeks. I was forbidden to visit others. To make matters worse, I began to get bouts of fever. At times when the fever was raging, things became hazy and I was not sure whether I was dreaming or awake. For two weeks I remained confined to the house. Finally, I was glad my enforced stay in the house was over when I became well. What caused the boy feel that he was not sure of whether he was dreaming or awake?

• A.  He could not sleep.
• B.  The high fever made him confused.  
• C.  He didn't like going to school.
• D.  The high fever prevented him from meeting anyone.