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Which outcome occurs despite physical separation when measuring entangled photon polarization through quantum key distribution?

A)Key interception reduces correlation strength
B)Spontaneous decoherence alters measurement basis
C)Observed correlation violates Bell's theorem
D)Measurement outcomes show correlated randomness

💡 Explanation

When measuring polarization in entangled photons, strong correlations exist because their states are quantum mechanically linked, causing measurement outcomes to be correlated even with spatial separation. Therefore the correlations are predictable in the presence of randomness, rather than key interception, decoherence or violation of Bell's theorem which are incorrect.

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