Can you help me this

Read the excerpt from pat mora’s essay "the leader in the mirror." i hoped that most of the students were going to enroll in college. the confetti would be for their private celebrations, those solitary moments when they had passed a test that worried them, finished a difficult paper at 2 a.m., found a summer internship. sometimes, even when no one else is around, it’s important to celebrate when we have struggled and succeeded—to sprinkle a little confetti on our own heads. what is the author’s purpose in using confetti as a symbol? the confetti represents celebration. the author uses confetti to encourage her audience to celebrate success. the confetti represents celebration. the author uses confetti to teach the students how to plan a celebration party. the confetti is a symbol of college graduation. the author uses the symbol to reward college graduates. the confetti is a symbol of summer internships. the author uses the symbol to encourage signing up for summer internships.

You are reading an informational text for english class, and you find a lot of words you don't know. your teacher says you don't need to look up all of them in the dictionary, only the ones you need to get the main point of the text. how could text features you figure out which words to look up?

This device blocks an opening along the base/floor of stairs or other walking or working surfaces where materials or body parts might otherwise inadvertently fall through. it should be 4 inches high, with not more than ¼ inch clearance above the floor