Which of the following quotes from the excerpt best summarizes surowiecki’s main point?
answer choices for the above question

a. “ the right circumstances, groups are remarkably intelligent, and are often smarter than the smartest people in them.”

b. “most of us lack the ability—and the desire—to make sophisticated cost-benefit calculations.”

c. “what francis galton stumbled on that day in plymouth was the simple, but powerful, truth that is at the heart of this ”

d. “in other words, the crowd’s judgment was essentially perfect.”the wisdom of crowds