Which phrase from the text best support the answer to part A

(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.”)

Read the passage. tomorrow, senator connie sullivan will meet with us farmers to discuss a new trade deal. she will also discuss the state of iowa’s economy and the crucial need to modernize nafta. according to the us chamber of commerce, approximately 14 million jobs depend on trade with mexico. at a delegate meeting last wednesday, sullivan said, "this is a number much too large to ignore.” which sentence corrects the error in capitalization? tomorrow, senator connie sullivan will meet with us farmers to discuss a new trade deal. she will also discuss the state of iowa’s economy and the crucial need to modernize nafta. according to the us chamber of commerce, approximately 14 million jobs depend on trade with mexico. at a delegate meeting last wednesday, sullivan said, “this is a number much too large to ignore.”

What is the key similarity between the characters of gerasim and vladimir ivanich in tolstoy’s the death of ivan ilyich?