Which option best revises the paragraph to convey the same meaning while maintaining a formal tone throughout?
Long before the refrigerator was invented, people prevented food from
spoiling by drying it with the sun's heat. This process enabled food to
be stored and consumed during the cold winter months when food
was scarce. A bunch of years later, people figured out how to put food
in cans, and that meant that it would be good to eat for even longer.