How can kilometers be converted to miles?

To convert kilometers to miles, the correct approach involves using a conversion factor that accurately reflects the relationship between these two units of distance. In general, one kilometer is approximately equal to 0.621371 miles. Thus, to convert kilometers to miles, you would typically multiply the number of kilometers by this factor.

The correct choice correctly aligns with this understanding of conversion mathematics, specifically adjusting for the scale between kilometers and miles. This option effectively illustrates how to translate the distance measured in kilometers into a corresponding measurement in miles.

For clarity, other methods mentioned, such as just multiplying by a fixed number like 5 or 6, do not accurately represent this relationship and would lead to incorrect conversions. Similarly, dividing by 8 or adding a constant value does not reflect the mathematical relationship required for a correct conversion between kilometers and miles. This highlights the importance of using a dedicated conversion factor rooted in the precise definitions of the units involved.