What is not a key feature of an arbitration agreement?  A. Informality  B. Confidentiality  C. Binding nature  D. Single arbitrator

To determine which option is not a key feature of an arbitration agreement, let's analyze each of the provided options:

1. Informality: Arbitration is generally less formal than court proceedings. This means that it embraces a more flexible approach to procedures, which can be seen as a key feature.

2. Confidentiality: One of the significant aspects of arbitration agreements is that they often ensure confidentiality of the proceedings and the outcome, making this a key feature.

3. Binding nature: Arbitration agreements usually result in binding decisions that the parties must adhere to, which is certainly a key feature.

4. Single arbitrator: While arbitration can involve a single arbitrator, it can also involve multiple arbitrators. Therefore, the number of arbitrators is not a definitive characteristic of all arbitration agreements, making this option less consistent as a key feature.

Final Answer

D. Single arbitrator is not a key feature of an arbitration agreement, as arbitration can involve either a single arbitrator or a panel of arbitrators.