B) The political, military, and social system in the Middle Ages, based on the holding of lands in fief, or fee, and on the resulting relations between lord and vassal.
C) The system of government used by the ancient Chinese, Goths, and Muslims.
The answer is option B, The political, military, and social system in the Middle Ages, based on the holding of lands in fief, or fee, and on the resulting relations between lord and vassal.
