Ezra's contribution to Judaism was

• A. Introduction of monotheism
• B. The building of the First Temple
• C. Establishment of the priestly caste
• D. The concept that Judaism was based on laws that could be read and known

Answer: (B)

Ezra’s influence is best seen in how Judaism came to be centered on a readable, knowable set of laws. After the exile, he emphasized the public reading and study of the Law and reinforced how the community should live by those commandments. This focus on having a formal, accessible code that people could learn and follow is the aspect most closely associated with Ezra’s impact, shaping how Jewish life organized itself around Torah observance.

The other options reflect things tied to earlier periods or different roles. Monotheism existed long before Ezra, the First Temple was constructed during Solomon’s reign, and the priestly caste was established earlier as part of ancient Israelite religion.