Rearrange the jumbled sentences to make a good and meaningful paragraph.

А.Microphones are used in many applications such as telephones, tape recorders, hearing aids, motion picture production, life and recorded audio engineering, megaphones, in radio and television broadcasting, and in computers for recording voices or speech recognition.

B.The quality of microphones is often referred to using the designations "Class 1," "Type 2" etc., which are references not to microphone specifications but to sound-level meters.

С. Microphones typically need to be connected to a pre-amplifier before the signal can be amplified with an audio power amplifier, or recorded.

D.A microphone (a mic or mike) is an acoustic-to-electric transducer or sensor that converts sound in air into an electrical signal.

E.Most microphones today use electromagnetic induction (dynamic microphone), condenser microphone, or electric generation to produce an electrical signal from air pressure variations.

The best arrangement is :