SORU: ?
(I) One of the biggest obstacles phoneticians face is
that they cannot see the objects they are studying.
(II) They can neither see the tongue as it is moving
around inside someone’s mouth, nor can they observe
the sound waves travelling through the air.
(III) Phoneticians ask questions such as how speech
sounds are made or how sound is registered by the ear.
(IV) Since ancient times, however, phoneticians have
made the best of the information they had access to,
employing careful listening, measuring, modelling, and
notation. (V) In addition, more sophisticated devices
have been developed within the past decades, such as
magnetic resonance imaging (MRI) and sonography.
Which of the sentences in the given paragraph is
irrelevant, violating its unity and coherence?