Final Answer:
a. Illuminated manuscripts - b) Recorded ancient Greek and Roman knowledge.
b. Byzantine icons - a) Serves as an enduring symbol of Byzantine architecture.
c. Hagia Sophia - Not directly associated with the provided descriptions.
Step-by-step explanation:
Byzantine icons, denoted by the letter 'b', served as enduring symbols of Byzantine architecture, capturing the essence of the empire's artistic and religious expressions. Icons were typically religious images, often depicting saints or religious scenes, and were central to Byzantine religious practices and aesthetics.
Illuminated manuscripts, indicated by the letter 'a', were intricately decorated manuscripts with illustrations and embellishments. These manuscripts played a crucial role in preserving and transmitting ancient Greek and Roman knowledge, serving as repositories of information in a time when printing technology was nonexistent. The term "illuminated" refers to the vibrant colors and gold leaf used in the illustrations, making these manuscripts not only informative but also visually stunning.
Hagia Sophia, represented by the letter 'c', does not align directly with the provided descriptions. Instead, Hagia Sophia is a monumental architectural masterpiece and a significant religious structure in Byzantine history. It served as a cathedral, mosque, and museum throughout its existence, symbolizing the cultural and religious shifts that occurred in the Byzantine and Ottoman empires. While not directly associated with recording ancient knowledge, Hagia Sophia remains a testament to the grandeur of Byzantine architecture and the cultural interchange in the region over the centuries.