D. Tiffany should participate more in class: She has some great ideas that would benefit other students.
Explanation:
Answer:
The sentence that correctly shows where a colon is needed in the sentence is the following one: Tyffany should participate more in class: She has some great ideas that would benefit other students (D).
Explanation:
A colon means that is to say. The fact is that a colon or a semicolon may be used between independent clauses when the second sentence illustrates, explains or expands on the first sentence. In this case, the second sentence explains why Tyfanny should participate more in class.
D. The second sentence (She has...) explains the first sentence (Tiffany should...). So the colon should be between the first and second sentence.
