Which of the following best describes how wireless telephones are able to receive and produce sound from one person to another?
A.
Electromagnetic waves are received and then vibrate a speaker which produces additional electromagnetic waves.
B.
Sound waves are received and then vibrate a speaker which produces electromagnetic waves.
C.
Sound waves are received and then vibrate a speaker which produces additional sound waves.
D.
Electromagnetic waves are received and then vibrate a speaker which produces sound waves.

D.

Electromagnetic waves are received and then vibrate a speaker which produces sound waves.

Explanation:

The telephone has a receiver-transducer component that can receive electromagnetic wave - radio waves spectrum- and transform them into electric energy. This electric energy is then transformed into sound energy by a speaker. This is how we're able to listen to a phone call.

The opposite happens when we speak on the phone. The sound energy is transformed into electric energy by a microphone – the reverse of a speaker.  The transducer now changes the electric energy into electromagnetic waves that travel through space to the recipient in the phone conversation.

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them