|Question 2Verbal

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The _____ of horse populations across Eurasia today reflects the competitive advantages of the highly mobile DOM2 breed that emerged through domestication and selective breeding in the 3rd millennium BCE. DOM2 spread quickly and extensively, completely supplanting other horse breeds in places like El Acequión, Spain, and Hohler Stein bei Schwabthal, Germany, by the end of the 2nd millennium BCE.
Which choice completes the text with the most logical and precise word or phrase?
profusion
A
homogeneity
B
ubiquity
C
variability
D