D. the convict feels a parental pride in what his patronage has done for Pip.
Explanation:
This is the answer that most closely resembles what Magwitch felt for Pip at this moment in the novel. Although Pip was not aware of this, Magwitch had provided for him for a long time, and all of the things that Pip had acquired in his life were in some way due to the patronage of Magwitch. He knows this, and he cares for Pip, which allows him to feel a sort of parental pride for what his patronage has done for Pip.
