C. Laying the fire. Hope this helps. :)
The sentence that is an example of an objective summary from Cynthia Crossen's "A Culinary Wasteland" is: C. The purveyors and aficionados of fast food may not have convinced Mr. Schlosser that it isn't poisonous dreck, but it would have been interesting to hear their best case and the author's rebuttal.
Talya can improve her introduction by properly citing her source.
As you can see in the excerpt above, Talya quoted someone, but she didn't cite where she took that quote from. She just said 'according to one source,' which is unacceptable in formal, academic writing. The way she wrote that, it is plagiarism because she didn't state the original author of that quote. So in order to avoid that, and to make her introduction even better, she should cite the original author of that particular sentence.
"We” is the subjective pronoun.
What “subjective” means is that the word is serving the function of the subject of the sentence, which means it is performing the action of the sentence. As you may know, only nouns and pronouns can serve as a sentence’s subject. That said, there are three pronouns within the sentence. “We,” which is the subject. “Our,” which is a possessive pronoun/adjective because it is being used to describe “bikes.” And, “them,” which is a pronoun serving as the direct object.