The detectives’ conversation with the grocer affected the outcome of the story? A:The police no longer suspect Mary of murdering her husband.
According to the book, "Lamb to the Slaughter", the author talks about the police investigation about the murder of Mary's husband and the list of suspects that the police believe had the motive to murder him.
It was not until after the police talked with the grocer and he gave them some details which they did not previously know that they stopped to suspect Mrs Mary.
Therefore, the correct answer is option A
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