The answer Is A. by pausing for thought and asking for clarification.
Evidence and details from the text
Answer: The quote given above is quite relevant to the events of the story. The beginning of the story proved that Tricki was lifeless because he did not struggle to digest his food. In the later part of the lesson, Dr Herriot authenticated that real strength comes only after struggle and hard work. He helped the dog to regain his strength by involving him in regular exercise and food regime. Food without exercise can lead to disease and discomfort for everyone
