A.I. Explanation:

Option 1: "The brain is designed to enable quick decision making."

Explanation: The text states that the brain evolved to help us think on our feet, indicating that it is designed for quick decision making. This aligns with the main idea that under pressure, our brain can still function effectively to make correct judgments.

Option 2: "Quick decision making can be improved."

Explanation: The passage mentions that we can learn to make better snap judgments, suggesting that quick decision making is not only possible but can also be improved through practice, similar to logical thinking.

Option 3: "Quick decision making routinely leads to error."

Explanation: This option contradicts the text, which states that people often make correct judgments even under pressure. Therefore, it is inaccurate to claim that quick decision making routinely leads to errors.

Option 4: "To make correct decisions we require all relevant information."

Explanation: The text implies that correct judgments can be made even with limited information, which contradicts the idea that all relevant information is necessary for making correct decisions.

Option 5: "Thinking things through thoroughly will lead to greater success."

Explanation: The passage argues that thinking long and hard does not always yield better results, suggesting that thorough thinking may not necessarily lead to greater success in decision making.