which of these sentences from the selection contains an opinion? a. later he competed in the golf tournaments that black golfers organized for themselves as they were excluded from the pga of america. b. charlie sifford was the first african american golfer to play on the pga tour and the first to win a pga tour event. c. in 2004, charlie sifford was inducted into the world golf hall of fame, located in beautiful st. augustine, florida. d. he first attempted to qualify for a pga tour event at the 1952 phoenix open, where he was subjected to threats.