What is the relevant information for determining a prognosis: A 9-month-old shepherd cross, had parvo while in rescues, was adopted at 6 months and taken to a force trainer for private lessons for six weeks. Dog is fearful of men and recently began growling at them if they get too close and make eye contact or reach out to pat him.
A) Previous medical history
B) Training methods used
C) Breed and age of the dog
D) Recent behavioral changes
