A flatter Harouni by mentioning how vast his lands are.
Incorrect. Trap answer! While the first few lines of 43-52 start off by Nawab highlighing the vastness of Harouni's lands, “Sir, as you know, your lands stretch from here to the Indus”, those lines primarily focus on Nawab's dedication and service to Harouni. Pay attention to the context of the lines here and make sure you read all the lines from 43-52 in order to grasp the message Nawab is trying to convey to his boss Harouni.
B boast to Harouni about how competent and reliable Nawab is.
Incorrect. Lines 43-52 emphasize not that Nawab is competent and reliable but that he feels he is no longer able to adequately fulfill his duties and obligations. “And now I cannot fulfill my duties as I should.”
C emphasize Nawab's diligence and loyalty to Harouni.
Correct. Nawab is trying to raise awareness concerning the labor and service he has provided for his boss Harouni over the years. At one point, Nawab states that “there is but one man, me, your servant” (he's the only person available to take care of the tube wells on all Harouni's vast lands and that large amount of stressful work has made Nawab's hair turn gray.)
D notify Harouni that Nawab intends to quit his job tending the tube wells.
Incorrect. Trap answer! At first glance, “Release me, I ask you, I beg you” seems to suggest that Nawab wants to quit. However, when we carefully read this part of the passage and carefully look at the situation and context, Nawab is actually asking to be released from his duties or responsibilities as a tactic or strategy to negotiate for a new motorcycle, but he never has plans and thoughts on quitting his job.