Which of the following addressing mode is best suited to access elements of an…

Answer: Indexed addressing mode

• How it works: The effective address is computed as a base address plus the value in an index register (often with optional scaling by element size). For the i-th element of an array, the address is base + i * element_size.

• Advantages for arrays: Allows efficient traversal by incrementing the index register, directly maps high-level array indexing to hardware, and often supports scaled indexing so element size is handled automatically.

• Why other modes are less suitable: Base register or displacement addressing access fixed offsets from a base and are better for fixed fields or stack/frame references; relative addressing is PC-relative and used mainly for branches or position-independent references. None of these are as naturally suited to repeated indexed access of contiguous array elements as indexed addressing.