What Is the Main Difference Between Situational Phobia and Panic

What is the main difference between situational phobia and panic disorder with agoraphobia?

A) People with situational phobia experience phobias at random times, and people with panic disorder with agoraphobia experience panic attacks only at specific times.
B) People with situational phobia experience panic attacks when confronted with the phobic situation as well as at other times, and people with panic disorder with agoraphobia only experience panic when in public places.
C) People with panic disorder with agoraphobia experience panic attacks only in specific situations, and people with situational phobia can experience phobias anywhere.
D) People with situational phobia never experience panic attacks outside the context of the phobic situation, and people with panic disorder with agoraphobia can experience panic even when not in a public place.