Which of the Following Are Legitimate Ways to Obtain Reimbursement

Which of the following are legitimate ways to obtain reimbursement from third-party payers for pulmonary rehabilitation programs?
1) Charge sessions as physical therapy exercises for COPD patients
2) Charge sessions as office visits with therapeutic exercises
3) Charge sessions as physician office visits-intermediate

A) 2 and 3 only
B) 1 and 2 only
C) 1, 2, and 3
D) 1 and 3 only