Which term describes the speech sound used to articulate diction with the lips, tongue, roof of the mouth, and teeth?

• A. Consonants
• B. Vowels
• C. Diphthongs
• D. Glottal Stops

Answer: (A)

Consonants are speech sounds produced by creating a constriction or closure in the vocal tract using the lips, tongue, teeth, palate, or other articulators. This constriction shapes the airflow to form distinct sounds like p, t, s, and many others. The description in the question points to this kind of articulation because it emphasizes the use of the lips, tongue, roof of the mouth, and teeth to create the sound.

Vowels, in contrast, are made with a relatively open vocal tract and are shaped mainly by the position of the tongue and lips without a significant constriction. Diphthongs are vowel sounds that glide between two vowel positions, still primarily vowel-based rather than produced with a constriction like consonants. Glottal stops refer to a specific manner of articulation at the glottis and are a type of consonant, not a vowel.

So, the term that best fits the description is consonants.