Final answer:
Max Weber's thesis suggests that Calvinism was instrumental in capitalism flourishing in Europe.
Step-by-step explanation:
Max Weber's thesis "The Protestant Ethic and Spirit of Capitalism" suggests that Calvinism was instrumental in capitalism flourishing in Europe. Weber observed that heavily Protestant societies, such as those in the Netherlands, England, Scotland, and Germany, were the most highly developed capitalist societies and that their most successful business leaders were Protestant. He argued that the Protestant work ethic, influenced by certain kinds of Protestantism, supported the pursuit of material gain by motivating believers to work hard, be successful, and not spend their profits on frivolous things. Therefore, the correct option is 2) Calvinism was instrumental in capitalism flourishing in Europe.