Select the option that can be used as a one-word substitute for the given group of words.
The study of coins

Correct option is A

The correct one-word for the given group of words is (a) Numismatics.
Explanation:
Numismatics refers to the study or collection of coins, paper currency, and medals. (Hindi meaning: सिक्कों और मुद्रा का अध्ययन)
Example: He has a passion for numismatics and owns a rare collection of ancient coins.
Meanings of the given other options:
· Choreography: The art of designing sequences of movements for dances (Hindi: नृत्यरचना).
· Informatics: The science of processing data for storage and retrieval (Hindi: सूचना विज्ञान).
· Cartography: The science of drawing maps (Hindi: मानचित्रण).