_______ can be used as points of reference with which the vowels of particular languages can be compared.
ADiphthongs
BCardinal vowels
CVowels
DMonophthongs
Answer:
B. Cardinal vowels
Read Explanation:
Cardinal vowels are a set of standard reference vowels used by phoneticians.
They represent extreme points of vowel articulation and provide a fixed system of reference for describing and comparing the vowel sounds of any language.
They are not specific to any one language but serve as a universal scale.
