Galen was considered the font of all medical knowledge; what does this imply about his ideas?

• A. He was regarded as the ultimate authority
• B. He studied at universities
• C. He discovered microorganisms
• D. He wrote in Persian

Answer: (D)

When someone is described as the font of all medical knowledge, the point is about authority and influence. It means his ideas were treated as the definitive reference, guiding how doctors understood the body, disease, and treatment for a long period. In Galen’s case, his writings became the standard textbooks and the main source used by learners and practitioners across centuries, shaping medical practice even when later discoveries offered different explanations. The other options don’t fit this sense of supreme authority: studying at universities, discovering microbes, or writing in Persian don’t capture the idea of being the central, most-cited source of medical knowledge.