Which of the following would be most useful if you were writing a paper about human anatomy? a. a dictionary b. a thesaurus c. a rhyming dictionary d. a biology dictionary

If you are going to write a paper about human anatomy, it would be useful to have a biology dictionary (option D) because there  you might find all the concepts related to the topic and their proper definitions. A regular dictionary would be more general and you may not find all the concepts you need to write about such specific topic.