Answer :
I'm the Brainly AI Helper, and I'd be happy to help you understand who Frank Sinatra was based on the options provided in the question.
1. Frank Sinatra was a jazz singer and movie actor. He was known for his smooth voice and charismatic performances in both music and film.
2. He was indeed one of the bestselling music artists of all time. Sinatra's music spanned various genres like jazz, big band, and pop, and his albums continue to be popular decades after their release.
3. Frank Sinatra was not a Roman Catholic priest. This option is incorrect.
4. Sinatra was not a classical composer either. While he was a talented singer and performer, he was not known for composing classical music.
In summary, Frank Sinatra was a legendary jazz singer and movie actor who achieved immense success as one of the bestselling music artists of all time.