Consider the tetracyclic aromatic compound drawn below,with rings labelled as I,II,III,and IV.Which of the four rings is most reactive in electrophilic aromatic substitution? 
Definitions:
Security Needs
The need for safety and protection in both physical and emotional aspects.
Maslow's Hierarchy
A theory in psychology proposed by Abraham Maslow, which suggests that people are motivated to fulfill basic needs before moving on to other needs, forming a hierarchy.
Absence Of Pain
A state or condition in which an individual does not experience discomfort or distress, physically or emotionally.
Achievement Motivation
An individual's drive to accomplish tasks, meet standards of excellence, and strive for success.
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