Yes it is, common nouns are basically the more specific version of nouns
hope this helps!!
The correct answer is C. Have seen.
This is because have and seen are used in combination to create the present perfect tense.
Answer:
Animal testing for new medical treatments would most likely be the best topic to write about because it will matter to a larger audience and will have many resources for research. You should have no trouble coming up with plenty of content to write about with this topic.
Explanation: