The transaction is selling and buying valuables. Transaction against normal behavior can be used to catch scheming credit card transactions.
The attitude and routine habits of an individual are called behavior. They follow a particular pattern in performing daily tasks.
The irregular or abnormal behavior of an individual is essential in detecting frauds in banking, insurance, laundering, etc.
The normal transaction habits of the customers can be used to compare them with suspicious-looking patterns thus, detecting frauds.
Therefore, option C. transactions against normal purchasing behavior can be used to detect frauds.
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