Answer: (A) They typically concern novel events.
Step-by-step explanation:
The non routine message are typically ambiguous and concerned about the various novel events for imposing the greatest potential for understanding. Non-routine messages regularly are portrayed by time weight and shock.
The non routine message are basically characterized from intellectual science has roused an immense number of shrewd trials to test different parts of data handling in misery and tension issue, and has provoked progressively complex models of data handling.
Therefore, option (A) is correct.