Why does MBQC need adaptive measurements?

Question: In one-way measurement-based quantum computation on cluster states, why are later measurement bases often chosen adaptively? A) Because adaptivity compensates for random earlier measurement outcomes through feed-forward corrections B) Because all qubits must be measured in the computational basis C) Because the cluster state cannot contain entanglement before measurement D) Because adaptivity is needed only for classical simulation, not for quantum computation Correct: A Explanation: Individual measurement outcomes are random, but their effects can be tracked and corrected. Later measurement choices may depend on earlier outcomes so that the intended logical computation is implemented despite this randomness. Topic: advanced quantum computing / MBQC / adaptive measurement