Context: hidden spy nanny cams .Time is very precious . We can not afford to waste time on simple little things . In today 's stimulating era , we all need to be more attentive do something new to make things easy in life .

Question: According to the excerpt , what is a good reason to install a hidden spy nanny cam ?
Options:
0. None of the above choices .
1. To make sure that the children are behaving well .
2. To make sure that the children are not abused .
3. To make sure that the nanny is engaging with the children .
Answer: 3