The Matching Coefficient Approach of Measuring Similarity Between Observations

The Matching coefficient approach of measuring similarity between observations

A) is a path with right turns as if one is walking a grid in a city.
B) measures the distance as the true straight line distance between two points.
C) makes calculations based on how dissimilar two observations are from each other.
D) measures the similarity between two observations with values that represent the minimum differences between two points.