B. The British are too crude to adapt the more refined Chinese
customs.
Explanation:
After the death of Marcus Aurelius, the Roman empire slowly started to decline. Potential new emperors began to focus on pleasing the rich Patricians at the expense of the poor plebeians . The resulting decadence was just one reason for the fall of the empire.
(It needs to be pointed out that as the question seems incomplete and lacks more context, the answer might not meet the its standards).
The answers Operant behaviors
Answer: Colonial troops/army . or Bluecoats
Explanation: To be honest many patriots had tried to give a name to the army, but no name stuck. I would just say colonial troops or army. George Washington had tried to enlist the name Bluecoats but the name didn't stick but it's worth mentioning because it stuck for the longest.