Final answer:
Ezra's contribution to Judaism was the compilation of the Torah into a single sacred text, which became a cornerstone for the mobile tradition of Judaism.The correct option is d).
Step-by-step explanation:
The prophet and priest Ezra's contribution to Judaism was notably the compilation of the Torah as a single sacred text. Once the Torah was compiled, the scholarly leaders of the Jewish community, particularly the rabbis, assumed the official duty of precisely re-copying it to ensure its teachings were preserved accurately. This was critical for the development of a “mobile tradition” of Judaism that allowed Jews to survive as a distinct people even in the face of dispersal and persecution.
The prophet and priest Ezra's contribution to Judaism was establishing the priesthood. After the Babylonian Captivity, Ezra was one of the key figures in preserving and revitalizing the Jewish faith. He played a significant role in gathering and organizing the Jewish community, reintroducing religious practices, and reestablishing the religious leadership and priesthood.