I have already installed the spy cams in my office and my home because even my wife is working and we have to leave our little child with the nanny at home . We thought that after installing the spy cam at our home we can give our child the best protection . My sister in law was worried about the thefts which were happening in her shop .

Question: Why is the sister in law 's situation relevant to this passage ?
Answer: The sister in law is in charge of the child in the day .The sister in law is deciding on spy cams too .None of the above choices .The sister in law may be moving into their home .