What happens if a validator goes offline or behaves incorrectly?

• A. Misbehavior or inactivity has no effect on rewards.
• B. The validator's stake is automatically refunded.
• C. Penalties are not enforced.
• D. Misbehavior or inactivity can reduce rewards, trigger penalties, and affect the validator’s stake and delegated rewards.

Answer: (D)

When a validator is online and behaves correctly, they earn rewards for participating in consensus. If they go offline or act improperly, the protocol imposes penalties to discourage those behaviors. These penalties can lower the validator’s rewards and can also affect the validator’s stake and the rewards that delegates receive. In other words, downtime or misbehavior doesn’t just disappear; it reduces earning potential and can touch both the validator’s own stake and the rewards earned by those who delegate to them. The other options imply no effect or refunds, which doesn’t align with how the system encourages reliable operation.