Correct option is A
A nautical mile is a specialized unit of distance primarily used in navigation, particularly in maritime and aviation contexts. It is defined as one minute of latitude along any meridian on Earth, making it a convenient unit for charting and navigating across the globe. One nautical mile is equivalent to approximately 1.852 kilometers or 1.1508 statute miles (the miles used in road measurements).
The nautical mile is especially useful in navigation because it directly relates to the Earth's geometry. Since the Earth is roughly spherical, using latitude and longitude for navigation aligns perfectly with the nautical mile. This unit allows sailors and pilots to calculate distances accurately on nautical charts, which are based on the Earth's coordinate system.
