Answer

(iii) Stamp coupling

Explanation

Stamp coupling occurs when one module passes a complete data structure (such as a record or object) to another module, even though the receiving module may need only part of it.

• Control coupling → passes control information.
• External coupling → depends on externally imposed formats/devices/protocols.
• Stamp coupling → passes a composite data structure.
• Content coupling → one module directly depends on or modifies another module's internal contents.

Final answer: (iii) Stamp coupling