Step 1: Understanding the treatment context.
In medical care for animals, especially dogs, certain treatments may require withholding food but ensuring hydration. The doctor may decide to monitor the dog while ensuring it has enough water but avoiding food to aid recovery.
Step 2: Identifying the correct option.
- (A) operated the dog is incorrect because there is no mention of surgery or a medical operation in the context.
- (B) gave the dog many things to eat is incorrect because the doctor is not feeding the dog in this scenario.
- (C) kept an eye on the dog, giving him no food, but plenty of water is correct, as this matches the typical care procedure when the dog is being monitored for its health, focusing on hydration rather than feeding.
- (D) gave the dog a lot of food, but no water is incorrect, as water is typically more crucial in such treatments than food.
Step 3: Conclusion.
Thus, the correct answer is (C) kept an eye on the dog, giving him no food, but plenty of water.