Answer:
A.
Explanation:
Once Mia knows her research topic, her next step should be to find her sources for information.
After topics are assigned, one should search whether there is enough information available on the given topic. Searching for keywords in encyclopedias, library, catalog, internet, periodical database, textbooks, etc.
Once you have your sources, list down the sources you will use for your writing.
Therefore, option A is correct.