Answer:
A. uniformity
Explanation:
"Absolute, or very high degree of, comparability between two or more alternatives, processes, products, qualifications, sets of data, systems, etc. Uniformity implies consistency in lack of variation between the items being compared, over a long period and across a wide range."
Reference: WebFinance. “What Is Uniformity? Definition and Meaning.” BusinessDictionary.com, 2019
