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: Which of the two athletes Giuseppe Caso replaced is older? Passage:On 12 July 2019, Caso joined to Serie C club Arezzo on a free-transfer and a 2-year contract. On 11 August he made his debut for the club as a substitute replacing Mattia Rolando in the 53rd minute of a 43 away defeat against Crotone in the second round of Coppa Italia. Two weeks later, on 25 August he made his league debut for Arezzo as a substitute replacing Walid Cheddira in the 65th minute of a 31 home win over Lecco. On 23 October, Caso played his first match as a starter or Arezzo, a 11 away draw against Pro Vercelli, he was replaced by Aniello Cutolo in the 61st minute. Four days later, on 27 October, he scored his first goal for the club in the 63rd minute of a 20 home win over Giana Erminio. On 10 November he played his first entire match for the club, a 21 home win over Olbia.
Links: a. Olbia Calcio 1905 b. Mattia Rolando c. Walid Cheddira d. F.C. Crotone
Output:
b