When Answering the Question, "How Rational Are We?", the Authors

When answering the question, "How rational are we?", the authors of your textbook discuss the notion of heuristics. Which of the following is true of heuristics?

A) they sometimes lead to irrational judgments.
B) they do not involve considering each possible alternative.
C) they allow people to make rapid and efficient judgments.
D) all of the above