Artificial Intelligence is the science of _________ machines to perform human tasks. (a) space (b) work (c) job (d) training

The correct answer to the question is (d) training.

Artificial Intelligence (AI) is fundamentally about the development of algorithms and models that enable machines to learn from data and improve their performance over time, mimicking human cognitive functions. The term “training” refers to the process through which AI systems learn to recognize patterns, make decisions, and perform tasks based on input data.

In contrast, options (a), (b), and (c) - "space," "work," and "job" - do not accurately reflect the essence of what AI is concerned with. While AI indeed performs tasks that can be classified as work or jobs, the foundational concept lies in the training of these machines to execute such tasks effectively. Consequently, the term "training" is the most appropriate choice here as it encapsulates the core activity involved in the creation and deployment of AI systems.