Which sentence uses punctuation correctly?

a. the dress hanging next to the gray sweater, is the new one.

b. the dress, hanging next to the gray sweater, is the new one.

c. the dress, hanging next to the gray sweater is the new one.

d. the dress hanging next to the gray sweater is the new one.

Poetry is a huge part of literary history. it is also a part of musical history. from the lyrics of ancient folk songs to those of modern-day rap, musicians have used words in their art to express life, love, and culture. whether the melody comes first or the words do, it is a poet's job to make them work together. the music and words become partners in the goal of expressing ideas or affecting the listener in some way. we have all been turned into mush by a beautiful song with a sad message, and we have the musical poets to for that. based on the sentences in this paragraph, which statement is accurate? sentence 1 is a complex sentence that varies the style and tone of the paragraph. sentence 3 is a complex sentence that varies the style and tone of the paragraph. sentence 5 is a compound sentence that varies the fluency and style of the paragraph. sentence 6 is a compound sentence that varies the fluency and style of the paragraph.

(1) fire extended humans’ geographical boundaries by allowing them to travel into regions that were previously too cold to explore. (2) it also kept predators away, allowing early humans to sleep securely. (3) fire, in fact, has been a significant factor in human development and progress in many ways. (4) other obvious benefits of fire are its uses in cooking and in hunting. (5) probably even more important, however, is that learning to control fire allowed people to change the very rhythm of their lives. (6) before fire, the human daily cycle coincided with the rising and setting of the sun. (7) with fire, though, humans gained time to think and talk about the day’s events and to prepare strategies for coping with tomorrow. the sentence that expresses the main idea is: (type the number of the sentence. then click “go.”)

Which best explains the role that the theme of freedom plays in this excerpt