I believe it is D. Just from context
Answer:
The writing style goes from 3rd person to 1st person
Explanation:
When the narrator referred to 'no man' it is in third person POV, then he refers to 'my work' which is in first person POV.
Answer:
Children is the subject of the sentence.
Explanation:
The children are the subject of this sentence, they are doing an action. The children do two actions, the children<em> ran</em> and the children <em>sat</em>.
I may not have understood correctly what the question is asking, so I hope this helps anyway.