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Problem 4 - Entrance Test

Arrange the following sentences to form a coherent paragraph: A) Quantum computing leverages the principles of superposition and entanglement. B) Unlike classical bits, qubits can exist in multiple states simultaneously. C) This parallelism could revolutionize fields like cryptography and material science. D) However, technical hurdles such as decoherence remain significant challenges. E) Researchers are actively working to stabilize quantum systems for practical applications.

Correct: B

B introduces qubits as the foundation. A explains quantum principles. C highlights potential impacts. D shifts to challenges. E concludes with the current technological efforts. The sequence BACDE forms a logical flow.