Questions: The reforms of categorize him as one of Judah's best kings. Josiah Jehu Ahab Hezekiah

The answer is Josiah: the reforms of Josiah categorize him as one of Judah's best kings.

Explanation for each option:

1. Josiah: Josiah is known for his significant religious reforms in Judah, which included the restoration of the Temple in Jerusalem and the centralization of worship there. He is credited with rediscovering the Book of the Law (likely Deuteronomy) and implementing its teachings, leading to a religious revival. These actions are why he is often considered one of Judah's best kings.

2. Jehu: Jehu was a king of Israel, not Judah. He is known for overthrowing the house of Ahab and eradicating Baal worship in Israel. However, his actions were more violent and politically motivated rather than religious reforms, and he is not typically categorized among Judah's best kings.

3. Ahab: Ahab was also a king of Israel, not Judah. He is often remembered negatively due to his promotion of Baal worship and his conflicts with the prophet Elijah. His reign is not associated with positive reforms in Judah.

4. Hezekiah: Hezekiah was indeed a king of Judah and is also considered one of its better kings due to his religious reforms and efforts to restore the worship of Yahweh. However, in the context of the question, Josiah's reforms are more directly associated with categorizing him as one of Judah's best kings.