Which of the Following Characteristics Should Be Taken as an Indicator

Which of the following characteristics should be taken as an indicator of the first stage of
Of stuttering according to the Bloodstein system:

A) stuttering occurs in response to specific environmental cues
B) stuttering occurs throughout the sentence, not in certain particular locations
C) the dominant symptom is short, easy repetitions of syllables and short words
D) there is a marked tendency for the stuttering to occur on content words (e.g.
Adjectives and verbs)