Concept:
Logic gates can be combined to form complex functions.
Step 1: Analyze structure
The circuit consists of AND, OR, and NOT combinations.
Step 2: Observe pattern
Two inputs are processed separately and combined.
Step 3: Functional behavior
Output is high when inputs are different.
Step 4: Truth table
Matches XOR operation:
\[
A \oplus B = A'B + AB'
\]
Step 5: Conclusion
\[
\boxed{\text{EX-OR gate}}
\]
Final Answer:
\[
\boxed{(A)}
\]