Question

What is the relationship between Cohesion and Coupling?

• A. High cohesion often leads to low coupling
• B. High cohesion often leads to high coupling
• C. Low cohesion often leads to low coupling
• D. Cohesion and coupling are unrelated concepts

Hint:

A tightly focused module needs fewer outside links, so watch what happens to coupling.

Answer 1

The Correct Option is A

Idea: Track dependencies when a module is self-contained.

A cohesive module does one focused job with its own data, so it reaches out to others less. Less reaching out means the between-module links drop:
\[ \text{cohesion} \uparrow \;\Rightarrow\; \text{coupling} \downarrow \]
They are clearly related, not independent, and they move opposite ways. High cohesion pushes coupling down, which is the mark of clean design.
\[\boxed{\text{Option A: High cohesion often leads to low coupling}}\]