BAs can share interchange transaction information with whom?

The correct answer highlights that Balance Authorities (BAs) can share interchange transaction information with all BAs and all Power System Entities (PSEs) involved in the transaction. This inclusive sharing facilitates better coordination, communication, and understanding among various entities participating in the power system.

By ensuring that all relevant parties have access to interchange transaction information, it promotes transparency and efficient operation of the electric grid. This is essential for real-time management and for maintaining reliability and stability in the energy market. All entities involved can assess their roles and contributions effectively, leading to optimal resource management and decision-making across the interconnected power system.

Other options may suggest limited sharing of information which could restrict the flow of crucial data necessary for operational coordination among BAs and PSEs. However, sharing information with all involved parties enhances collaboration and ensures that everyone is aware of the operational context.