Medicare and Medicaid hospice benefits criteria allow patients with a life expectancy of 6 months or less to be admitted to the hospice. However, the median length of stay in a hospice program is just 21.3 days. Which of the following reasons explains underuse of hospice care services?a) Patients/families view palliative care as giving upb) Lack of fully credentialed and trained hospice nursesc) Difficulty obtaining Medicare certification for hospice servicesd) Lack of Medicare/Medicaid funding for hospice