Answer:
Reasonable
Step-by-step explanation:
Finding a good babysitter is never an easy task. Parents, of course, want the best person to replace them when they are too busy. The problem with this is that they can't know who they are dealing with based on a few interviews.
Quotation from this text, such as "Good help is hard to find" really is true, because leaving a child to an unknown person always leave parents worried and restless, so apprehension they experience is completely justified and reasonable.