Explanation: A simile is a figure of speech that consists in making a comparison between elements that aren't obviously related, this comparison is made using the words "like" and "as." A metaphor is also a comparison but it is direct (it doesn't use the words "like" or "as"). The given sentence isn't an example of a simile, nor a metaphor, because it isn't comparing elements, when it says "velvet shoes" it is just describing the shoes using an adjective.
Neither, because the shoes could be made of velvet, in that case, then it is neither or if the shoes are not really made of velvet, it is a metaphor. it is definitely not a simile
'Lamb to the Slaughter' is told by an outside narrator from a limited third-person perspective. Dahl chooses to only reveal what Mary Maloney is aware of.