Which definition best describes data analytics?

The definition that best describes data analytics is the one describing it as "the science of data." This emphasizes the analytical techniques and methodologies employed to extract insights and knowledge from various sets of data. Data analytics is fundamentally about applying scientific methods and rigorous analysis to data in order to make informed decisions. It involves not only understanding data but also using statistical tools and algorithms to interpret it, leading to better decision-making processes.

While the other options touch on relevant aspects of data analytics, they each fail to capture the essence of analyzing data as an organized scientific field. For example, the idea of utilizing data to model the unknown is more specific to predictive analytics, and doesn’t address the broader perspective of what data analytics encompasses. The interaction of various data management elements leans towards data management and governance rather than focusing specifically on analysis. The process of solving problems with data is a crucial application of data analytics, but it doesn't encapsulate the overall scientific approach that characterizes the field.