Why does the marketplace of ideas often have a moderating effect on people's opinions? a. those who shop in the marketplace of ideas typically start with moderate viewpoints. b. moderate ideas are always closest to the truth and, therefore, are most successful in the marketplace of ideas. c. given constant exposure to other people's ideas, it is almost impossible for one not to modify one's own viewpoints. d. moderate ideas usually have the best financial backing and the greatest publicity. e. the most popular ideas are usually the most moderate ones?

The answer from the given choices is "c. given constant exposure to other people's ideas, it is almost impossible for one not to modify one's own viewpoints".

The marketplace of ideas refers to a justification for flexibility of expression in view of a similarity to the financial idea of a free market. The marketplace of ideas holds that reality will rise up out of the opposition of thoughts in free, straightforward open talk, and reasons that thoughts and belief systems will be winnowed by their prevalence or inadequacy and across the board acknowledgment among the population. The idea is frequently connected to talks of patent law and in addition flexibility of the press and the obligations of the media in a liberal majority rule government.