Which entity regulates subnet creation and validator assignments on Avalanche?

• A. The EVM
• B. The P-Chain
• C. The C-Chain
• D. The X-Chain

Answer: (B)

Subnet creation and validator assignments on Avalanche are governed by the P-Chain, the platform chain that handles governance and coordination. Avalanche’s three-chain design includes the X-Chain for asset transfers, the C-Chain for smart contracts (EVM-compatible), and the P-Chain for platform governance, subnet configuration, and the validator registry. The P-Chain is what lets you register new subnets, set their rules, and assign which validators participate in each subnet. Validators stake AVAX on the P-Chain to become eligible to validate, and the P-Chain enforces changes to validator sets and subnet permissions. The other chains serve different roles—C-Chain hosts smart contracts, including those that run on the EVM, and X-Chain handles transfers—but they do not regulate subnet creation or validator assignments.