The diagram that shows how the sun and moon line up during an eclipse is the most important visual aid to use.
<h3>What is a
visual aid?</h3>
These refers to an images or video that is used to support a lecture and helps in making the topic seem more real to the audience.
Hence, the diagram that shows how the sun and moon line up during an eclipse is the most important visual aid to use during the speech about the solar eclipse.
Therefore, the Option B is correct.
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Poe creates contrast in his portrayal of the bird in "The Raven" by placing the black bird on the marble statue. The contrast between the darkness of the bird and the whiteness of the statue is quite striking, exactly the thing he wanted to achieve.
An art song is usually for solo voice and is accompanied by solo piano. (Just as a side note, I recommend listening to the Erlking by Schubert if you have time; it's a German art song (lied))