Choose the answer which best rewords the italicized portion. If you think the original wording is best, choose option A.
It was discovered in 1803 by William Hyde Wollaston.
Explanation
Answer: D - The best choice is “William Hyde Wollaston discovered it in 1803.”
The original sentence uses the passive voice. To emphasize who discovered palladium, use the active voice, represented by the sentence “William Hyde Wollaston discovered it in 1803.” Here, the sentence states the subject, Wollaston, before the noun (discovered).