According to the expert what caused the fire to spread so quickly

Alex barely reached the airport to catch his flight. but a minute later, he found that his passport was missing. he let out a loud groan and picked up his dropped luggage. as he walked through the airport exit, he saw his airplane soaring into the sky. the passage is in third-person point of view, which is revealed through the use of the subject, alex, and the use of the pronouns he and his. think about how much distance the narrator maintains toward the character. what type of third-person point of view is used? a; third-person limited b; third-person objective c; third-person omniscient

Can someone explain this to me clearly plz

(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.”)