Which drug against malaria is extracted from the bark of the cinchona, a tree of the Peruvian Andes?

Answer and explanation

Correct answer: B. Quinine, which reached Europe in the 17th century

  1. Step 1: Quinine comes from cinchona bark. Step 2. It was introduced to Europe from Peru in the 17th century. Answer: Quinine. Why not the others: Penicillin, insulin and aspirin come from other sources.

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