What is the typical role of the P-Chain in validator registration?

• A. The P-Chain stores validator metadata and governs subnet creation, registration, and validator assignments.
• B. The P-Chain handles gas pricing for C-Chain.
• C. The P-Chain manages off-chain computations.
• D. The P-Chain is used only for token transfers.

Answer: (A)

The main idea here is that the P-Chain acts as the platform, or governance, layer of Avalanche. It is the place where validator information is stored and where subnet-related decisions are made. When you join as a validator, your metadata—such as identity, stake, and the subnets you’re part of—is registered and tracked on the P-Chain. It also governs the creation and management of subnets, including which validators are assigned to which subnets and how registrations are approved and updated. This is why the P-Chain is described as storing validator metadata and handling subnet creation, registration, and validator assignments.

Gas pricing, off-chain computations, and token transfers are handled by other parts of the network (for example, C-Chain for smart contract gas dynamics, or X-Chain/C-Chain for transfers), so those roles don’t fit the P-Chain’s purpose.