An AI-based 'Expert System' used for medical diagnosis relies heavily on a collection of domain-specific facts, rules, and heuristics. What is this core component called?

In the context of Artificial Intelligence in management applications, a neural network is primarily designed to:

Statement I: Artificial Intelligence can help organizations improve forecasting and decision-making. Statement II: Artificial Intelligence systems are incapable of learning from historical data. Which of the statements given above is/are correct?