Which client is at an increased risk for hospital-acquired pneumonia (HAP)

Which client is at an increased risk for hospital-acquired pneumonia (HAP)? geoquad A Client who was admitted yesterday with hypoxia and fever geoquad B Client who has been on mechanical ventilation for 5 days geoquad C Client who reports being on an airplane with other sick individuals geoquad D Client who was admitted to the hospital 5 days ago for abdominal pain