Answer: The right answer is the a) It is hard for humans to evaluate events in terms of potential outcomes.
Explanation: Just to elaborate a little on the answer, it can be added that this excerpt does not specifically refer to God, but to Heaven. In addition, it does not talk about the difficulty that humans experience to make friends with foes or to think well of them. Heaven is seen here as an omnipotent and powerful force that does not help humans discern the result of a good or an evil action, and, consequently, often confounds them, letting them believe that friends are foes and vice versa. The right answer is, therefore, the A. Humans often act without fully evaluating the consequences of their actions, since they do not have all the information at hand to do so.