Answer:
C. The author begins the letter in this way to show that he
understands the teacher's perspective.
Step-by-step explanation:
As the father begins the letter, he tries to let know the teacher that he understands what he sees and what is happening, he wants to let him know that he understands that his son might be quiet and shy, but that´s a cultural attribute more than a characteristic of his son being a slow learner, as indian kids have different culture and different ways, when read by an occidental can misslead them to thinking they are shy or slow, but they are just very thoughtfull and introverted.