Final answer:
The author's positive point of view toward the subject is evident in sentences that highlight his skills, dedication, and hard work as a cowboy. Therefore, the correct options are b), c) and d).
Step-by-step explanation:
The sentences that indicate the author's positive point of view toward the subject are:
- "...he knew how to care for the ponies;"
- "He followed the herd when it stampeded during a terrific thunderstorm."
- "...he never stopped for fatigue."
These sentences highlight the subject's skills and abilities as a cowboy, showing that he was capable, dedicated, and hardworking.
Therefore, the correct options are b), c) and d).