Which of the following is true of mood disorders:

A. Difficulties that take on a physical form, for which there is no medical cause
B. Intense irrotational fears of specific objects or situations
C. Disturbance in emotional experience that is strong enough to intrude on every day living
D. The separation of different facets of a person’s personality that are normally intergrated

C. Disturbance in emotional experience that is strong enough to intrude on everyday living