I WILL GIVE U BRAINLIEST!

the amounts of e-waste generated in a region during two years were 14,200,000 tons and 10,700,000 tons. What was the total e-waste generated over these two years in the region, expressed in scientific notation?

Select one:
a. 2.49 ⋅ 107 tons
b. 2.49 ⋅ 1014 tons
c. 24.9 ⋅ 107 tons Incorrect
d. 24.9 ⋅ 1014 tons