The Student Nurse Overhears Several Staff Members Referring to a Client

The student nurse overhears several staff members referring to a client who is receiving chemotherapy as having "chemo brain." The student asks the instructor what that means.Which response by the instructor is best?

A) "That is an awful thing to say and the staff should not call a client by that name."
B) "It refers to the client's brain as being irreversibly damaged by the chemotherapy."
C) "The client has reduced cognitive function that may last for several years."
D) "The client has delirium related to the toxic effects of the chemotherapy."