Respuesta :
The investigators' perceptions of Mary change after speaking with the grocer, and they become sure that she is blameless.
"Lamb to the Slaughter's" central theme is violence and betrayal. The true major incident is the assassination and following deceit that takes place in its aftermath, despite the fact that marital troubles and challenges play a large part in the main event.
So, Option "D" is the correct answer to the following question.
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