Mackenzie is curious about the reason utility companies use high-voltage lines to transport energy and asks Lalasa to explain it to her. Which response is correct? 1) High-voltage lines are used to reduce energy losses during transmission. 2) High-voltage lines are used to increase the efficiency of energy transmission. 3) High-voltage lines are used to decrease the cost of energy transmission. 4) High-voltage lines are used to increase the speed of energy transmission.