Why is it important to transfer radio communications and control responsibility early enough?

Transferring radio communications and control responsibility early is critical to allowing the receiving facility to manage the aircraft effectively beyond the clearance limit. This early transfer facilitates coordination between facilities and ensures the aircraft can continue its flight path without delays or confusion. It enables the new controller to establish communication, assess the situation, and integrate the aircraft into their traffic environment smoothly.

If the transfer is not conducted early enough, the receiving controller may not have adequate time to prepare for the aircraft's arrival, potentially impacting the safety and efficiency of air traffic management. The other options, while relevant to air traffic control, do not specifically capture the primary reason for early communication transfers in relation to clearance limits.