Final answer:
In the poem 'Mushrooms' by Holm, the mushrooms are personified in several ways, but they are not personified by dieting.
Step-by-step explanation:
In the poem 'Mushrooms' by Holm, the mushrooms are personified in several ways. For example, it is mentioned that their fists push through needles and their toes take hold. Additionally, the mushrooms talk quietly, giving them human-like qualities. However, the mushrooms are not personified by dieting. This means that option (b) is the correct answer, as the mushrooms are not portrayed as engaging in any particular type of diet in the poem.