Final Answer:
The central idea of "Lamb to the Slaughter" is that housewives are capable of committing a crime, such as killing their husbands, and cleverly concealing the evidence from detectives.
Option D is the answer.
Step-by-step explanation:
Option A: This option is not the central idea of the story. The narrative focuses more on the unexpected actions of the protagonist than the detective's role.
Option B: While the story involves a husband and wife, the central idea goes beyond men hurting women's feelings. It delves into the unexpected actions and decisions people can make.
Option C: The story doesn't suggest that detectives are inept; rather, it highlights the unforeseen and unconventional nature of the crime.
Option D: This is the correct answer. The story revolves around a housewife committing a crime and successfully hiding it from detectives, challenging stereotypes and expectations.
Option D is the answer.