Approximately how many cats were used for research purposes in the United States during the same period?

Approximately how many cats were used for research purposes in the United States during the same period?

• A. 23,000 cats
• B. 65,000 dogs
• C. 55,000 primates
• D. 40,000 rabbits

Answer: (A)

Think about how researchers use different species and how often each is chosen. The data for that period show cats were used in far fewer studies than the other animals listed. Since the question asks for an approximate number of cats, you should pick the option that reflects the smallest usage, because that best matches the cat figure in that dataset. In that era, dogs, primates, and rabbits were used more frequently, while cats were comparatively less common, with counts tracked in oversight records.

Think about how researchers use different species and how often each is chosen. The data for that period show cats were used in far fewer studies than the other animals listed. Since the question asks for an approximate number of cats, you should pick the option that reflects the smallest usage, because that best matches the cat figure in that dataset. In that era, dogs, primates, and rabbits were used more frequently, while cats were comparatively less common, with counts tracked in oversight records.