Which of the following consonants are most commonly syllabic?

The consonants that are most commonly syllabic are /m/, /n/, and /l/. A syllabic consonant is one that can function as a syllable on its own, which often occurs in unstressed positions in words.

In many languages, including English, /m/ and /n/ can form syllables especially in words where they follow a vowel and create a nasal sound, as in "button" (where /n/ acts as the syllable), or in "prism" (where /m/ is syllabic). The consonant /l/ can also be syllabic in cases like "bottle," where it is unstressed and represents a separate syllable following a vowel.

This is in contrast to the other options, which do not typically form syllabic sounds. For example, while /p/, /b/, /t/, /s/, /z/, /r/, /k/, /g/, and /f/ are important consonants in forming syllables in various contexts, they do not commonly function as syllabic consonants in the same way /m/, /n/, and /l/ do.