With a view to bringing down crime, a proposed ordinance requires the

With a view to bringing down crime, a proposed ordinance requires the installation of closed-circuit televisions (CCTV) in new residential complexes so that residents can see and authorize the entry of people into the complex. However, a builder argued that because 90% of the burglaries occurred at night when the residents were asleep, the CCTV may not help in bringing down the number of crimes committed.

Which of the following, if true, would strengthen the builder's contention that CCTVs may not bring down the number of crimes committed?

A. Most families today are nuclear with both spouses working, so for a greater part of the day there is no adult at home.

B. The crime statistics in the state where the ordinance is proposed reveal that most crimes are perpetrated by people known to the victim.

C. Round-the-clock watchmen would be far more cheaper than the installation and maintenance of CCTVs.

D. Most building complexes deny entry to the sales personnel and market research analysts.

E. A number of crimes are committed during the day when people least expect them.