Question: Why you should never store the default value for any key in Solidity mapping? Group of answer choices Because any Solidity compiler throw an error

Why you should never store the default value for any key in Solidity mapping?
Group of answer choices
Because any Solidity compiler throw an error is you do so.
Because it would be impossible to distinguish whether the default value or no value has been stored for a key.
Because it will return undefined for that key.

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