In Which of the Following Ways Do Advances in Electronic

In which of the following ways do advances in electronic surveillance promise greater efficiency in crime control?

A) Presumably, potential offenders will refrain from crime if they know they are being watched and believe they face a greater risk of being caught.
B) Police, it is assumed, will more quickly learn of dangerous situations and, equipped with crucial information, will be able to respond in the safest way possible.
C) Electronic surveillance may increase perceptions of safety among law-abiding citizens, encouraging them to make greater use of public spaces where they can serve as informal guardians and potential witnesses.
D) All these answers are correct.