Final answer:
The main conclusion of the argument is that social science phenomena should not be reduced to the language of mathematics, as this could distort their true nature.
Step-by-step explanation:
The main conclusion of the argument is that social science phenomena should not be reduced to the language of mathematics. This is because mathematical expressions may not be capable of capturing all social phenomena adequately, and attempting to do so would likely result in a distortion of those phenomena. The use of mathematics in the natural sciences has indeed given them predictive power, but the social sciences contend with complexities and variables that often elude strict quantitative measurement.
Therefore, the answer to which one of the following most accurately expresses the main conclusion of the argument is: d. social science phenomena cannot be reduced to the language of mathematics.