Which statement is true about presidential decision making?

It is a complex process, as the president must consider many different interests and potential outcomes.
It is a complex process, as the president has no power to act as an individual in the midst of a crisis.
It is a simple process, as the president has broad power to take action with or without others' approval.
It is a simple process, as the president must follow a strict and clear process of working with advisers.