People with __________ insist that they are suffering from a serious physical malady, even though no medical evidence of it can be found.

A) dissociative amnesia
B) illness anxiety disorder
C) bipolar disorder
D) delusions of grandeur

The term used to describe the condition described in the question is "Illness Anxiety Disorder" (previously known as hypochondria). People with this disorder believe they have a serious physical illness despite no medical evidence for it. The disorder is classified as a somatic symptom disorder in the DSM-5. Dissociative amnesia refers to memory problems, bipolar disorder includes mood swings, and delusions of grandeur refer to a false belief in one's own superiority or importance.