Why did China decline after being the most advanced civilizations in the world ?

China was once a strong and stable Empire but it began its decline in the 1500s and continued until modern times. This was caused by major reasons such as a refusal to trade, an uprising against foreign control, and the effect from a change of monarchy to a democracy.

Explanation:

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gaius cassius longinus and marcus junius brutus, former enemies of julius caesar who'd joined the roman senate, led caesar's assassination, dubbing themselves "the liberators." and the second one is   the assassination of julius caesar was the result of a conspiracy by many roman senators led by gaius cassius longinus, decimus junius brutus albinus, and marcus junius brutus. they stabbed caesar (23 times) to death in a location adjacent to the theatre of pompey on the ides of march 15 march 44 bc.

the answer is option a.