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Which keyword prevents a state variable from being modified after deployment construction?
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#A
#B
#C
#D
Explanation:
immutable variables are assigned once (typically in the constructor) and then become read-only. They are stored in bytecode rather than regular storage slots, which can reduce gas compared to storage reads. This matters in Solidity interviews because immutables are common in optimized contracts (e.g., router addresses) and in secure configuration patterns.
