Final answer:
The correct album that featured backing vocals from Ladysmith Black Mambazo is Paul Simon's Graceland. Therefore, the correct option is B.
Step-by-step explanation:
The correct answer is B. Paul Simon's Graceland.
The album Graceland, released in 1986, featured backing vocals from the South African vocal group Ladysmith Black Mambazo. Ladysmith Black Mambazo is known for their traditional isicathamiya and mbube music styles and their collaboration with Paul Simon brought their unique sound to a global audience. Their harmonies can be heard on songs like "Diamonds on the Soles of Her Shoes" and "Homeless".