Verbal learning, where an individual responds best through auditory methods of teaching.
Answer:
Has
(Unless you're looking for a more fancy word?)
Voiceless combinations of two consonants are called diagraphs. An example of this would be "st" or "ch". The opposite to this is a voiced combination that is called a blend.
I don't know the full story behind that but repetitive, rhythmic sound, makes me think they are talking about the old mans breathing.
But i'm not sure
