1,000,000 is written as 10^6. Other wise it would be too low or too high.
Well the displacement of milage from the 2 places if 75km however, the women and her car are in the same place so there is no displacement. But 75km is the correct mathematical answer.
Heya friend !!
During water cycle , Water in liquid state absorbs tremendous amounts of incoming solar energy causing it to evaporate and it is released back in the atmosphere while the formation of clouds during Condensation .
Hence , We got our answer as D.
Hope it helps you :)