The amounts of plastic waste generated in a region for 2 years were 32,400,000 tons and 20,300,000 tons. What was the total plastic waste generated in the region for these 2 years, expressed in scientific notation?
52.7 ⋅ 1014 tons
52.7 ⋅ 107 tons
5.27 ⋅ 107 tons
5.27 ⋅ 1014 tons