Marcy wants to include information in her article about variables affecting drivers' visual acuity. Which sentence ,begin emphasis, best, end emphasis, combines information on that detail from these two articles?

Prior to researching, a writer should a. create an outline b. cite sources c. compose a draft d. create research questions select the best answer from the choices provided a b c d the answer is d

(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.”)

Blogs differ from most other online text sources because they o focus on news and information. allow readers to interact with each other. are usually updated every day. can be updated with new information.