Numismatics is the study or collecting of coins medals and paper money.
Answer: <em>Holter monitoring</em>
Explanation:
A Holter monitor is referred to as or known as a small medical device which powered by a battery that tends to measures an individuals heart activity, example rhythm and rate. In this the doctor might ask an individual to use the device if they tend to need more data and information regarding their heart function.
The answer is D, Great Britain.
