Answer:
Out of the four sentences you provided, the sentence that uses clear and concise language is: “During a visit to the vet, three of the eight puppies escape to three parts of the office.”
Explanation: The sentence “During a visit to the vet, three of the eight puppies escape to three parts of the office” is clear and concise because it presents the information in an active voice and uses specific details to convey the message. The subject of the sentence (the puppies) is placed at the beginning, making it easy to understand who or what is performing the action. The sentence also includes specific numbers (three out of eight puppies) and locations (three parts of the office), which helps to paint a clear picture of what is happening.