During Morning Care,the Nursing Assistant Asks a Patient with Dementia,"How

During morning care,the nursing assistant asks a patient with dementia,"How was your night?" The patient replies,"It was lovely.My husband and I went out to dinner and to a movie." The nurse who overhears this should make the assessment that the patient is:

A) demonstrating a sense of humor.
B) using confabulation.
C) perseverating.
D) delirious.