Answer :
The meaning of the phrase "old iron rooster screeched at the slight" is the old iron rooster is announcing the dawn.
What are idioms?
Idioms are the phrase that express a non-relative meaning of any sentence or incident.
Idioms are commonly used in talking to give it an idiomatic touch. Examples are Under the weather, the ball is in your court.
Thus, the correct option is A.
Learn more about idioms
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