Question 19 • Introduction to Information Technology - EL3701
A codec encodes audio into a particular coding format and decodes it for playback, so B applies. Codecs often compress audio when encoding and decompress it when decoding, so C also applies. Converting a file from one format to another is a separate conversion process that may use codecs; codecs themselves are not transducers that play audio.
AI-written and checked against the verified answer.