Identify the term that best describes the italicized word.
they watched the flock of birds fly south, in what looked like perfect formation.
a. concrete noun
b. compound noun
c. proper noun
d. collective noun

How does the poem's mood and tone change in each of these stages of “o captain! my captain! ” by walt whitman? (i need an answer asap )

1if katina that the first day of her internship at harper and associates would be so disastrous, she would have called in sick. she'd chosen her clothes carefully that morning: katina had dressed in black slacks, a white shirt, a vibrant turquoise jacket, and matching turquoise shoes to create a youthful but professional look. on the bus ride to work, someone had bumped katina's arm, and she'd spilled her coffee down the front of her shirt. unfortunately, the jacket couldn't hide the stain, and katina knew that the senior partners had noticed it when they'd introduced themselves. 2 one of the third-year associates, greg, had shown katina around the office and explained her responsibilities. then, he'd taken her to the copy room, handed her an enormous box of legal briefs, and told her to start making copies. just when she'd almost finished, greg had returned to tell her that he actually needed two copies of every file. after lunch, greg had katina start filing the copies. she'd been filing for an hour when greg informed her that she'd put the files in the incorrect order. katina could only hope that tomorrow would be a better day. how does the author reveal katina's initial excitement about her internship? a) by showing how katina responds to conflict b) by describing how katina felt at the end of the day c) by showing how katina interacts with other characters d) by describing how katina selected her clothes with care

20 pts + brainliest for a answer the structure of a written work—the way a work is built using sentences, paragraphs, chapters, or sections­—can an author develop and communicate ideas to the reader. how does the structure of paragraph 1 develop the ideas in roosevelt's first inaugural address? select each correct answer. by beginning with concrete examples and moving on to abstract ideas, the author readers understand the major points. by beginning the paragraph with references to himself and the audience, the author makes his ideas more approachable. by moving swiftly from topic to topic, the author emphasizes the importance of the nation's problems. by summing up the points that he will raise, the author creates a preview of the later paragraphs in the speech. by mixing shorter sentences among the long sentences, the author makes his ideas flow more smoothly and understandably.