Which of the Following Constitutes a Problem That Affects Data

Which of the following constitutes a problem that affects data collected by the nurse interviewing an elderly,chronically ill patient? Many elderly who are covered only by Medicare Parts A and B find it difficult to pay the cost of

A) hospital care for an acute short-term illness.
B) prescription drugs while living at home.
C) post-hospitalization rehabilitation services in a skilled nursing facility.
D) doctor's office visits, Pap smears, and mammography.