The Consumer Protection Commission, the current Consumer Protection Committee, 11 the supervisor and coordinator for the various consumer protection organizations that put this law into practice.
答案：(A) serves as
serves as the supervisor and coordinator（擔任監督者與協調者的角色）表示消保會的職責是擔任各消保團體的監督與協調角色；fights for／persists in／corresponds to 均不符合此處語意。
serve 你的印象大概是餐廳裡的上菜或服務，很難聯想到它可以用來講一個機關擔任什麼角色。serve as 是很常見的正式用法，意思是擔任、充當，後面接的是一個身分或功能。
先看空格後面接的是什麼：the supervisor and coordinator（監督者與協調者），這是一個身分。所以這一格要的是能接身分的動詞片語，serve as ＋ 身分正好對上。這裡的 as 就是「以……的身分」那個 as，與 As a small child, he lived in India. 走的是同一條路：as 後面接名詞時是介系詞，表示身分或資格。
corresponds to 最誘人，因為它後面同樣接名詞，形態上完全通；但 correspond to 是「相當於、對應於」，講的是兩樣東西彼此對得上，代進去會變成消保會相當於監督者與協調者，把一個機關的職務寫成了某種對應關係，語意不對。fights for（為……而奮鬥）後面接的是目標或理想，不是職稱。persists in（堅持、固執於）後面接的是某件事，也不能接身分。鑑別度 54，分開的是有沒有先確認空格後面那一串是身分，而不是別的東西。
serve as（擔任、充當）、correspond to（相當於、對應於）、fight for（為……而奮鬥）、persist in（堅持、固執於）、put sth into practice（把……付諸實行）、rights and interests（權益）
The Consumer Protection Act in Taiwan was enacted on January 11, 1994. The Act demonstrated the government's efforts to protect consumers' rights and interests. The Consumer Protection Commission, the current Consumer Protection Committee, 11 the supervisor and coordinator for the various consumer protection organizations that put this law into practice. In order to improve the well-being of consumers in Taiwan, the Committee advocates fair trade and 12 pricing for goods and services. The Committee also organizes educational programs to raise consumer awareness, and is active in assisting consumers involved in 13 with businesses or manufacturers.
Since its establishment, the Consumer Protection Committee has taken measures that emphasize product safety and sanitation. These measures also ensure that all labels and advertisements 14 to regulations. In addition, the Committee collaborates with various international consumer protection organizations to respond to problems involving cross-border trade and business. 15 its regulatory power and administrative resources, the Committee plays a crucial role in protecting consumers in Taiwan.