Assertion(A): Segment override prefix (SOP) is used when a default offset register is not used with its default base segment register but with a different base register. Reason(R): The offset registers IP and SP can never be associated with any other segment registers apart from their respective default segments.

• A.  A is false but R is true.
• B.  Both A & R are true but R is not the correct explanation of A.
• C.  Both A & R are true and R is the correct explanation of A.
• D.  A is true but R is false.

Answer: (B)