Chapter 420

Grace thought for a moment, furrowing her brows and pouting. "Darling, did I never learn this, or was I just not paying attention in class?" she asked in frustration. Oliver glanced at the supplemental material at the back of the book, realizing it was additional content for self-study and was not typically covered by lecturers. Without making things too difficult for Grace, he simply gave her the answer. "What role does the central bank play in the payment system?" Grace answered thoughtfully, "It represents its clients to…" Although her response wasn't word-for-word from the textbook, it captured the essence. Oliver, who was always patient with her, wasn't looking for a perfect answer. He just wanted her to understand the concept. As he continued with more questions, Grace, though slow and a little unsure at times, managed to touch on the key points. Oliver figured Grace wasn't just drifting through her school days after all. "Where did the world's first bank origina