Question

A presidential executive order can be issued under which circumstances?

Answer 1

1. Answer;
Without congressional approval 
A presidential executive order can be issued without congressional approval.

Explanation; 
Executive Orders are generally orders from the President of the United States to staff of the executive branch and not to citizens. Article I, section 1 of the U.S. Constitution specifically reserves all federal legislative authority to Congress, not the president. 

2. Answer;
The commander in chief refer to the President's military responsibility

Explanation;
Article II section 2 of the U.S. constitution, the commander in chief clause, states that the president will be Commander in Chief of the Army and Navy of the United states, and of the Militia of the several states, when called into the actual Service of the United States.

Answer 2

C.if the Senate approves the order

A presidential executive order can be issued under which circumstances?---

C.the president's military responsibilities

What does the title "commander in chief" refer to?