Why Is It Important to Provide Sufficient Information When Writing

Why is it important to provide sufficient information when writing objective information?

A) The treating therapist can remember what he or she did during the last session.
B) Another therapist can reproduce the treatment session if the first therapist is absent.
C) The therapist can answer all of the patient's questions about each treatment session.
D) The patient can tell his or her family what the treatment session included.