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.
Q: Question: Which organization was created first, the PCF or the SFIO? Passage:Despite its name, the coalition was on the right wing of French politics; for a long time, the French republican right has refused to call itself "right" since the right-wing in France has historically been associated with monarchism (this practice is known as sinistrisme). It was subsidised by French employers, who saw in it the best defense against Communism and the defender of economic liberalism, in a context marked by various nationalizations supported by the French Communist Party (PCF), the French Section of the Workers' International (SFIO) and the Gaullist movement. Employers conceived the RGR as such until at least the 1951 creation of the National Centre of Independents and Peasants (CNIP) gathering independent conservative deputies. During the 1956 legislative campaign, it became a political party led by Edgar Faure and Radicals who refused to join the Republican Front coalition.
Links: a. Monarchism b. French Section of the Workers' International c. French Section of the Workers' International d. French Communist Party
A:
d