Answer :
The closest increase in the distance of the Olympic marathon, in miles, is 1.25 miles. The correct option is B.
Given the Olympic marathon has been extended from 40 km to about 42 km.
Option B is correct. In 1908, the marathon was extended by 42 - 40 = 2 km. Since 1 mile is equal to 1.6 km, the 2 km increment can be converted to miles by multiplying as illustrated:
2 km × (1 mile / 1.6 km) = 1.25 miles
The options other than B are A, C, and D are incorrect and may be due to errors in applying conversion rates or other calculation errors.
Hence, an increase in the distance of the Olympic marathon when the Olympic marathon was lengthened from 40 kilometers to approximately 42 kilometers is 1.25 miles.
Learn more about kilometers to miles from here brainly.com/question/5063205
#SPJ4