What were key governance differences between Tang and Song?

What were key governance differences between Tang and Song?

• A. Tang relied more on military expansion and aristocratic power; Song emphasized civil administration, bureaucratic merit, and a weaker army.
• B. Tang favored civil service; Song relied on aristocracy.
• C. Both had identical governance structures.
• D. Tang had a strong navy; Song had no central bureaucracy.

Answer: (B)