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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 old was the actor who portrayed Zelenka when he was nominated for a Leo Award? Passage:Dr. Radek Zelenka is a fictional character of a scientist in the television series Stargate Atlantis, portrayed by David Nykl. He is a member of the original expedition from Earth to the Ancient city of Atlantis in the Pegasus galaxy, which he joined after turning down a job at Masaryk University in his home country Czech Republic. His expertise on Ancient technology is only surpassed by Dr. Rodney McKay, with whom he shares a friendly rivalry. Zelenka's planned one-time appearance in the season 1 episode "Thirty-Eight Minutes" was followed by a recurring role for expository scenes with McKay and the leader of the expedition. Zelenka has since appeared in approximately half of each season's episodes and also appeared in the crossover episode "The Pegasus Project" of Stargate SG-1. The series finale of Atlantis, "Enemy at the Gate", marks his last appearance. For his portrayal of Radek Zelenka, David Nykl was nominated for a 2005 Leo Award in the category "Dramatic Series: Best Supporting Performance by a Male".
Links: a. Leo Awards b. Leo Awards c. Stargate SG-1 (season 10) d. Stargate Atlantis
Output:
a