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knowledge
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correct statement
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javascript
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+15 XP
React State Immutability
Which statement about React state updates is strictly correct?
A
State should be treated as immutable; never mutate state objects directly like `state.count++`
B
Mutating state directly like `state.push(x)` triggers immediate re-renders
C
State updates in React are always 100% synchronous
D
React state variables can only store strings
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