C). "Ancient Greek People and Their Rulers," an article in an academic encyclopedia
Explanation:
As per Ellie's reading purpose, the most appropriate text would be the "article titled 'Ancient Greek people and their ruler' in an academic encyclopedia" as it will provide her broad, high-quality, and authentic information regarding the administration in ancient Greece. Encyclopedias are recognized as one of the most reliable sources to provide authentic and unbiased information on a wide range of topics and <u>an article included in it regarding the ancient Greek rulers, their administrative system, people, and their role in the administration, etc. which help in accomplishing her research for her paper effectively</u>. Thus, <u>option C</u> is the correct answer.
