Knowledge from the Clinical Sciences Is Used in Pulmonary Rehabilitation

Knowledge from the clinical sciences is used in pulmonary rehabilitation programming for mainly what purpose?
1) To quantify the extent of physiological impairment
2) To establish ways to improve the quality-of-life
3) To set expectations for reasonable outcomes

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