Which of the Following Students Provides the Most Accurate Information

Which of the following students provides the most accurate information about the research on overconfidence?

A) Solange: "Overconfidence applies to many other cognitive tasks, in addition to decision making."
B) Igor: "The research on overconfidence shows that participants are consistently overconfident, no matter what kind of questions they are asked."
C) Steve: "Individual differences are surprisingly small in this area; both experts and novices show similar levels of overconfidence."
D) Amber: "The overconfidence effect can be traced to illusory correlations."