29. Speaker A: I think preventive care should be prioritized. It's more cost-effective and leads to better long-term health outcomes.Speaker B: True, but some communities still struggle to access even basic care. Without addressing inequality, prevention isn't enough.Speaker C: I agree with both of you, but I also think we need to invest more in mental health services, which are often overlooked.What is the main challenge being discussed?(A) How to improve hospital management systems.(B) Whether doctors should receive better salaries in rural areas.(C) Whether physical health matters more than mental health.(D) Whether vaccines should be required.(E) How to spend health care money when there are many needs.