Given the task definition and input, reply with output. In this task, you're given a question, a context passage, and four options which are terms from the passage. After reading a passage, you will get a brief understanding of the terms. Your job is to determine by searching and reading further information of which term you can answer the question. Indicate your choice as 'a', 'b', 'c', or 'd'. If you think more than one option is plausible, choose the more probable option to help you answer the question.

Question: How many World Cups did the person who Klammer finished second behind in 1973 win? Passage:Klammer first showed signs of promise in the second half of the 1973 World Cup season, finishing second in the St. Anton downhill behind Bernhard Russi of Switzerland, the reigning Olympic and World Cup downhill champion. Klammer, age 19, followed this up with a third at St. Moritz and a third in the giant slalom at Mont Sainte-Anne (the only time he finished on the podium in a World Cup Giant Slalom in his career). The following season he finished second in the downhill standings behind Roland Collombin of Switzerland, his nemesis that season. After beating Collombin and Russi at Schladming in December 1973 under terrible conditions, Collombin bested him at Garmisch, Avoriaz, and Wengen. In December 1974, Collombin fell at Val-d'Isere, as he had the previous year. This time Collombin broke his back in a training run, unfortunately ending his promising career. Klammer won that race and every other downhill that 1975 season, except Megeve, where one of his skis came off; without this incident, he would have won the overall World Cup title in March 1975, due to a good slalom result two days before at Chamonix, which would have granted him at least a third place (15 points) for the AK-combined of slalom Chamonix / downhill Megeve. In the Olympic test event at Patscherkofel at Innsbruck in January 1975, Klammer had defeated defending Olympic champion Bernhard Russi of Switzerland, the runner-up, by nearly a half-second.
Links: a. Bernhard Russi b. 197475 FIS Alpine Ski World Cup c. Bernhard Russi d. Garmisch Classic
a