Definition: 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.
Input: Question: How old was Juha Mieto when she won her first Olympic gold medal? Passage:Finland has always produced successful competitors in the disciplines of nordic skiing. Championship-winning male cross-country skiers from Finland include Veli Saarinen (winner of an Olympic gold and three World Championship titles in the 1920s and 1930s), Veikko Hakulinen (who won three Olympic and three World Championship golds in the 1950s and 1960s, as well as a World Championship silver medal in biathlon) and Juha Mieto (who won an Olympic gold medal in 1976 and two overall FIS Cross-Country World Cups). Among female athletes, Marjo Matikainen-Kallstrom won a gold at the 1988 Winter Olympics, three World Championships and three overall World Cups and Marja-Liisa Kirvesniemi won three golds at both the Olympics and World Championships and two overall World Cup titles.
Links: a. Juha Mieto b. Veli Saarinen c. Juha Mieto d. Veikko Hakulinen
Output:
a