Quote:
Explanation must be distinguished from justification. Every human action potentially has an explanation, that is, with sufficient knowledge it would be possible to give an accurate description of the causes of that action. An action is justified only when the person performing the action has sufficient reasons for the action. According to many psychologists, even when there is a justification for an action, that justification often forms no part of the explanation. The general principle, however, is that only an action whose justification, that is, the reasons for the action, forms an essential part of its explanation is rational.
If the statements in the passage are correct, which one of the following can be properly concluded from them?
(A) When a human action is justified, that action has no explanation.
(B) If there are any reasons among the causes of an action, then that action rational.
(C) Some psychologists believe that the justification for an action never forms an essential part of its explanation.
(D) There are actions whose causes cannot be discovered.
(E) If any human actions are rational, then reasons must sometimes be causes of actions.
This is a challenging question. I will try to do my best with it. Here is my answer:
The correct option is
(E) If any human actions are rational, then reasons must sometimes be causes of actions.This option follows logically from the passage, which states that only an action whose justification, that is, the reasons for the action, forms an essential part of its explanation is rational. Therefore, if any action is rational, it must have reasons as part of its causes. This option also does not contradict any other statement in the passage.
The other options are not correct for the following reasons:
(A) When a human action is justified, that action has no explanation.This option is false because it contradicts the passage, which states that every human action potentially has an explanation. Justification does not exclude explanation, but rather it is a special type of explanation that involves reasons.
(B) If there are any reasons among the causes of an action, then that action rational.This option is false because it is too strong. It says that if there are any reasons among the causes of an action, then that action is rational. But the passage says that only an action whose justification forms an essential part of its explanation is rational. It is possible that there are some reasons among the causes of an action, but they are not sufficient or relevant for the justification of the action. For example, suppose I buy a lottery ticket because I want to win money and I have a lucky number. These are some reasons for my action, but they do not form an essential part of its explanation. The explanation of my action also involves other factors, such as my beliefs, emotions, habits, etc. Therefore, my action is not rational according to the passage.
(C) Some psychologists believe that the justification for an action never forms an essential part of its explanation.This option is false because it misrepresents the passage, which states that according to many psychologists, even when there is a justification for an action, that justification often forms no part of the explanation. This does not mean that some psychologists believe that justification never forms an essential part of the explanation. It only means that they believe that justification often does not form any part of the explanation.
(D) There are actions whose causes cannot be discovered.This option is false because it goes beyond the scope of the passage, which states that every human action potentially has an explanation. This does not imply that every human action actually has an explanation that can be discovered. It only means that with sufficient knowledge, it would be possible to give an accurate description of the causes of the action.