When comparing and contrasting several elements from two pieces of literature, it is most useful to use the structure of c) similarities and differences.
There were five sandwiches on the table.
Five is the adjective in the sentence
The type of appeal used in President Obama’s statement is clearly <em>Argument
</em>
Argument in literature is the main idea of a story, a speech or a poem.
…<em>"To attract new businesses to our shores, we need the fastest, most reliable ways to move people, goods, and information—from high-speed rail to high-speed Internet….”
</em>
This statement is clearly the main idea of the speech from which he developed all the reasons and arguments to support it. This statement also serves as an introduction with the purpose of attracting the readers or the listeners, to the subject that is going to be developed.
Then, he uses a conclusive sentence to wrap up the arguments already mentioned.
<em>…”This isn't just about faster Internet or fewer dropped calls. It's about connecting every part of America to the digital age…"
</em>