Critical Reasoning (CR) | Commemorative plaques cast from brass are a characteristic

Commemorative plaques cast from brass are a characteristic art form of the Benin
culture of West Africa. Some scholars, noting that the oldest surviving plaques
date to the 1400s, hypothesize that brass-casting techniques were introduced by
the Portuguese, who came to Benin in 1485 A.D. But Portuguese records of that
expedition mention cast-brass jewelry sent to Benin’s king from neighboring Ife.
So it is unlikely that Benin’s knowledge of brass casting derived from the
Portuguese.

Which of
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