hard20 pts · first answer countssecuritysignatures

Replaying a signed message

A contract lets users withdraw by submitting an owner-signed message containing (recipient, amount). What protection is missing?

A.The message should be hashed with MD5B.Only the owner should be able to submit itC.A nonce, deadline, contract address and chain ID (EIP-712 domain) so the same signature cannot be reused or used on another chainD.The amount should be in wei instead of ether

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