Question:  Ina Anita Carter (March 31, 1933 – July 29, 1999), the youngest daughter of Ezra and Mother Maybelle Carter, was a versatile American singer, splayed upright bass with her sisters Helen Carter and June Carter Cash as The Carter Sisters, were an American singing quartet consisting of who, and her daughters ?
Sentence (from "Anita Carter"): The trio joined the "Grand Ole Opry" radio show in 1950 (Anita was 17 years old at the time), opened shows for Elvis Presley, and joined "The Johnny Cash Show" in 1971.
Relevant evidence: No