Concept:Meaningful discovery learning allows students to actively explore and construct knowledge, leading to deeper understanding and long-term retention.Explanation:Learning is best facilitated when students engage in meaningful discovery. This approach encourages active participation, inquiry, and problem-solving. Learners connect new ideas to prior knowledge, which builds intrinsic motivation and fosters curiosity. In contrast, competition, material rewards, or negative reinforcement may produce short-term compliance but do not support genuine understanding or self-driven learning. Therefore, the most effective way to facilitate learning is through meaningful discovery, where students take ownership of their learning process.Answer:A. through meaningful discovery