A Well-Designed Oxygen Protocol Will Ensure Which of the Following

A well-designed oxygen protocol will ensure which of the following?
1) The patient undergoes initial assessment.
2) The patient is evaluated for protocol criteria.
3) The patient receives a treatment plan that is modified according to need.
4) The patient stops receiving therapy as soon as it is no longer needed.

A) 1, 2, and 4 only
B) 2 and 3 only
C) 1 and 3 only
D) 1, 2, 3, and 4