Stacey's mom's hands are so full of groceries that she is waddling like a penguin to get up the stairs. NO LINKS PLZ In this sentence, the suggests that Stacey's mom .
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simile; is tottering in a strange manner.

personification; is struggling to hold all the groceries.

simile; has feet that are shaped like a penguin.

metaphor; is wearing a black-and-white outfit.