Final answer:
The Deuteronomist source, likely composed in the southern kingdom of Judah, had a favorable view of kingship, emphasizing the importance of the monarchy and portraying the kings of Judah in a positive light.
Step-by-step explanation:
The source that was likely composed in the southern kingdom of Judah and had a favorable view of kingship is D (Deuteronomist). The Deuteronomist source emphasizes the importance of the monarchy and portrays the kings of Judah in a positive light. It promotes obedience to God's laws and the centralization of worship in the temple at Jerusalem.