You will be given a definition of a task first, then some input of the task.
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: What was the population of the Commonwealth of the Philippines the last year Manuel Quezon served as the President of that place? Passage:Mestizos in the Philippines are traditionally a blend of Austronesian, Chinese, Spanish, Southern European or Latin American ancestry and are primarily descendants of viajeros (sailors who plied the Manila-Acapulco Galleon route), soldados (soldiers) and negociantes (merchants who were primarily Spanish, Chinese, or themselves mestizos). Because of this, most mestizos in the Philippines are concentrated in the urban areas and large towns of the islands such as Manila, Iloilo, Zamboanga, Cebu and Vigan. In these provinces of the Philippines, many Spaniards and foreign merchants intermarried with the rich and landed MalayoPolynesian local nobilities. From these unions, a new cultural group was formed, the mestizo class. Their descendants emerged later to become an influential part of the colonial government, and of the Principalia, among whom were Manuel L. Quezon, the first President of the Commonwealth of the Philippines (19351944); and Marcelo Azcarraga Palmero who even became interim Prime Minister of Spain on August 8, 1897 until October 4 of that same year. Azcarraga also went on to become Prime Minister of Spain again in two more separate terms of office. In 1904, he was granted Knighthood in the very exclusive Spanish chilvalric Order of the Golden Fleece the only mestizo recipient of this prestigious award.
Links: a. Spain b. Commonwealth of the Philippines c. Manila d. Iloilo City
Output:
b