Answer: Usual, customary and reasonable.
Step-by-step explanation:
Medical expense policies basically covers all the expenses of the hospital. It covers the doctor visits while the patient is in hospital, usually all the expenditure included in the diagnosis of X-ray, per day doctor visit fees, laboratory charges, nursing expenses, ambulance fees, maternity benefits. These policies do not cover the dental and vision care.
On the basis of the above description, the medical expense policy is known as usual, customary and reasonable.