Final answer:
The idiom 'Be Consumed With Something' signifies being completely absorbed or engrossed in something to the point that it takes up all your attention or time.
Step-by-step explanation:
The idiom 'Be Consumed With Something' means to be entirely absorbed or preoccupied with something (option C). It refers to a situation where someone is so interested, involved, or engrossed in something that it takes up all of their attention or time. For example, if a person is consumed with a new book, they're likely spending all their available time reading and thinking about the book.
It's not about being disinterested, indifferent, or having a mild interest (options A, B, D). These descriptions do not convey the intensity and full engagement implied by the verb 'consumed' in this idiom.
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