Answer:
B. It is focused on a debatable topic.
Step-by-step explanation:
A quality research question does not necessarily need to be supported by experimentation. Nor does it need to relate to literature or history or be several sentences long. However, a research question does need to be focused on a debatable topic. This is because only debatable topics require research. If a topic has been firmly established as beyond debatable, there is little need for more research to be performed on the subject.