A. Unique Payment Interface
B. Unanimous Payment Interface
C. Universal Payment Interface
D. Unified Payment Interface

Solution

D. Unified Payment Interface

Explanation

The paper gives “Unified Payment Interface”; the commonly used formal expansion is Unified Payments Interface.

प्रश्नपत्र में “Unified Payment Interface” दिया है; प्रचलित आधिकारिक विस्तार “Unified Payments Interface” है।