Alexander Pope, an English poet of the 18th century, is best known for his translations of Homer's "Iliad" and "Odyssey" into English. These translations were highly influential and brought Pope widespread recognition. His translation of the Iliad was published between 1715 and 1720, and the Odyssey followed between 1725 and 1726.
None of the other figures listed—Thomas Gray, Samuel Johnson, or Oliver Goldsmith—are known for translating Homer.
Thomas Gray was primarily known for his poetry, such as "Elegy Written in a Country Churchyard."
Samuel Johnson was an essayist, lexicographer, and critic, known for his works like "A Dictionary of the English Language."
Oliver Goldsmith was a novelist, playwright, and poet, best known for works like "The Vicar of Wakefield" and "She Stoops to Conquer."
Thus, Alexander Pope is the correct choice for translating Homer.