Answer: C.)They are worried that the family might want financial compensation for his death.
In Chapter 15 of Nectar in a Sieve, we learn that Raja has died, and that three days after the funeral, two men from the tannery pay a visit to Rukmani. Although the purpose of their visit is not clear at first, it eventually becomes clear that they want to make sure the family does not want compensation for Raja's death. They argue that the watchmen saw Raja trying to steal a calfskin, and when trying to stop him, he collapsed out of hunger or weakness. Eventually, Rukmani agrees that the tannery was not at fault and that she will not seek compensation.