Answer:
D. Martin Luther King's famous speech used two memorable refrains: "I have a dream" and "Let freedom ring".
Explanation:
A colon instead of a semicolon may be used between independent clauses when the second sentence explains, illustrates, paraphrases, or expands on the first sentence.
The hard and fast rule is that a colon must ALWAYS follow a complete sentence.
Gold and silver would be correct i believe
In "The Snowstorm," Emerson is referring to the winds howling in the sky when he states the metaphor of "the trumpets of the sky."
Complex and compound sentences.