What is the form of conflict in "A Day's Wait"?

character versus character

character versus society

character versus supernatural force

character versus himself

Letter D - I believe the form of conflict here is character versus himself. A Day's wait is about a young boy, who is called Schatz by his father, believing that he is dying. He had flu, and the doctor said he got a fever of a hundred and two. Schatz is convinced that he is going to die, and he is just waiting for it to happen.