What is the significance of the P-Chain's staking for subnets?

• A. Staking on the P-Chain is optional and has no effect on subnets.
• B. Staking on the P-Chain funds only the validators.
• C. Staking on the P-Chain is used to advertise subnets.
• D. Validators stake on the P-Chain to secure and govern subnets, enabling subnet creation and validator management.

Answer: (D)

Staking on the P-Chain is the mechanism that secures and governs subnets. By locking AVAX on the Platform Chain, validators participate in the governance and security processes that control subnet creation, configuration, and which validators belong to each subnet. This stake ties economic incentives to careful management, ensuring subnets can be reliably created, updated, and maintained.

Because the P-Chain handles subnet metadata, validator assignments, and voting on changes, staking is essential for these functions. It’s not optional, nor is it about funding only validators, and it isn’t simply about advertising subnets—the stake is what empowers the creation, management, and governance of subnets.