A 39-Year-Old Mother of Five Children Was Recently Diagnosed with Early-Stage,noninvasive

A 39-year-old mother of five children was recently diagnosed with early-stage,noninvasive DCIS.She has decided to have a bilateral preemptive modified radical mastectomy to minimize her risk of metastatic disease.She is calm and confident that she has made the right decision but she is concerned about the length of her recovery.The perioperative nurse recognizes the patient's concern and assigns her a nursing diagnosis of:

A) knowledge deficit related to unfamiliarity with the hospital environment.
B) knowledge deficit related to ineffective preoperative preparation.
C) knowledge deficit related to unfamiliarity with perioperative routines and anxiety about her future.
D) knowledge deficit related to delayed discharge teaching.