Which is the definition of telegraphy?(1 point) Responses the transmission of radio waves that get converted back into sound waves at the receiver the transmission of radio waves that get converted back into sound waves at the receiver the transmission of signals using light waves from things such as lighthouses the transmission of signals using light waves from things such as lighthouses the science of creating sound waves using pulses in a symbolic code the science of creating sound waves using pulses in a symbolic code the science of using or making communication systems to transmit or reproduce information

the science of using or making communication systems to transmit or reproduce information

The definition of telegraphy is the science of using or making communication systems to transmit or reproduce information.

The correct answer is: the science of using or making communication systems to transmit or reproduce information.

To find this answer, you can break down the options and evaluate each one.

Option 1: "the transmission of radio waves that get converted back into sound waves at the receiver"

This option describes the process of radio transmission and conversion into sound waves, which is not specific to telegraphy. Therefore, it is not the correct definition of telegraphy.

Option 2: "the transmission of signals using light waves from things such as lighthouses"

This option describes the use of light waves and lighthouses for signal transmission, but it is not directly related to telegraphy.

Option 3: "the science of creating sound waves using pulses in a symbolic code"

This option describes the creation of sound waves using pulses in a symbolic or coded form. While this conveys the idea of telegraphy involving coded messages, it does not encompass the entirety of the definition.

Option 4: "the science of using or making communication systems to transmit or reproduce information"

This option provides the most comprehensive definition of telegraphy. It includes the use of communication systems and the transmission or reproduction of information, which encapsulates what telegraphy is all about.

Therefore, option 4 is the correct answer.