Which of the following are considered major advances made during the Han dynasty?

Paper and porcelain were invented during the Han dynasty, as was the wheelbarrow. ... The major achievements of the early Han dynasty revolve around the first emperor to reign under the Mandate of Heaven, Wu Ti. Emperors were under heaven's rule according to the mandate. Their success was based on the opinion of the gods.

Explanation:

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the war powers resolution (also known as the war powers resolution of 1973 or the war powers act) (50 u.s.c. 1541–1548) is a federal law intended to check the president's power to commit the united states to an armed conflict without the consent of the u.s. congress.

explanation:

the answers is b.   environments.