You have been assigned to write a research essay on steroids. Your current working research question is "What are steroids?"

Which revision of this question would be more effective for your research?
Responses
A "How does taking steroids effect the human body?""How does taking steroids effect the human body?"
B "When did steroids become so popular among athletes?""When did steroids become so popular among athletes?"
C "What are the names of a few steroids commonly taken?""What are the names of a few steroids commonly taken?"
D "How much do over-the-counter steroids typically cost?