The correct answer is (b), Jim Courier.
Boris Becker was a German professional tennis player who was active from 1984 to 1999. He won six Grand Slam singles titles, including the U.S. Open in 1989.
Ivan Lendl was a Czech-American professional tennis player who was active from 1978 to 1994. He won eight Grand Slam singles titles, including the U.S. Open in 1985 and 1987.
Stefan Edberg was a Swedish professional tennis player who was active from 1983 to 1996. He won six Grand Slam singles titles, including the U.S. Open in 1991.
In the 1991 U.S. Open, Courier defeated Edberg in the final in four sets. This was Courier’s second Grand Slam singles title, and his first at the U.S. Open.