The introductory paragraph
Answer:
d. by acknowledging that some people disagree with his position
Explanation:
Roberto addresses this new information "by acknowledging that some people disagree with his position"
Roberto cannot ignore the new source or call it foolish but can only acknowledge it and then finds better reasons to support his own claims above what the new information says.
When writing a sentence, you will have a main idea, and you may also have a subordinate idea, a clause that has less importance than the main idea. Subordinate ideas, sometimes called a subordinate clause or a dependent clause, can help you prove or establish the importance of the main idea in your sentence. Knowing how to identify a subordinate idea will help you strengthen your writing skills.
