What is the purpose of the double asterisks?

a) to indicate the correction of a mistake within the document
b) to indicate the most important information presented in the text
c) to indicate additional information at the end of the document
d) to indicate that only one choice offered in the list is optional

Which statement best explains coelho's choice in the alchemist to have the boy work for the crystal merchant? it shows the reader what happens when one follows his or her personal legendit explains how the boy earns enough money to marry the merchant's daughter.it provides the reader with engaging details about the city of tangier.it demonstrates that the path to one's personal legend is not a straight and obvious one.

In what way do you think it would be difficult to live next to the united states

(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.”)