Why was it necessary for police officers in nineteenth-century Chicago to know Morse code?

A.) Every citizen in Chicago had a telegraph key in the home, and he or she would telegraph the nearest police office in the event of an emergency.
B.) The police officers did not need to know Morse code; only the dispatchers who telegraphed the messages to the police on the beat needed to know the code.
C.) The Chicago police department maintained signal boxes around the city with telegraph keys inside; the officer would pick up any assignments by this method.
D.) The police department in Chicago also served as the Wells Fargo telegraph station, and officers were paid to transmit telegrams during their off-duty hours.

C. The Chicago police department maintained signal boxes around the city with telegraph keys inside; the officer would pick up any assignments by this method.

Explanation:

vehicle inspection tests are conducted to ensure that a vehicle is safe to operate. during the vehicle inspection test, you will be expected to explain or show your knowledge of the vehicle inspection process.

during the vehicle inspection test, you must show that the vehicle is safe to drive. you will have to walk around the vehicle and point to or touch each item and explain to the examiner what you are checking and why. you will not have to crawl under the hood or under the vehicle. the brake lights, emergency flashers, turn signals, and horn must be checked. if any of these items do not work, the skills and road portions of the test will be postponed.