Problem: Dev argues that 9 AM is a bad time to sign up for a small discussion group because he will be too tired from the previous night's activities. He prefers to sign up for a large lecture class at that time. José disagrees, noting that this small discussion group is something they both wanted to do and will require their attention, while they may not focus in the lecture class. Dev says that this is not a commonsense approach. What weakness does Dev exhibit? Question options: lack of rigor lack of self-awareness lack of authenticity over-reliance on hindsight lack of objectivity