[ Vocabulary ]
A PPO insurance is better than an HMO when someone needs to see a specialist.
Specialist means:
A. Someone who more aware about a certain subject
B. To concentration on a certain field
C. To be knowledgeable in a certain area of stud
D. All of the above

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What type of figurative language is used in this sentence?
I am about to freeze to death in this classroom!
A. simile
B. metaphor
C. idiom
D. hyperbole