The correct answer is: D. Albert Costa
Albert Costa won the first Davis Cup title for Spain in December 2000. He defeated Arnaud Clément of France in the final, winning 6-4, 6-3, 6-2.
Juan Carlos Ferrero was the top-ranked Spanish player at the time, but he was injured and did not play in the Davis Cup final. Alex Corretja was the second-ranked Spanish player, but he lost to Sébastien Grosjean in the semifinals. Juan Balselly was the third-ranked Spanish player, but he lost to Cédric Pioline in the quarterfinals.
Albert Costa was ranked No. 10 in the world at the time of the Davis Cup final. He had a career-high ranking of No. 5 in 1999. He won four ATP Tour titles in his career, including the French Open in 2002.
Spain had never won the Davis Cup before 2000. They had reached the final four times, but they had never won the title. Costa’s victory in 2000 was a historic moment for Spanish tennis.