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Problem 1 - Entrance Test

Read the following paragraph and choose the best summary. In recent decades, quantum computing has transitioned from theoretical physics to practical experimentation. While classical computers process information using binary bits (0s and 1s), quantum computers utilize quantum bits (qubits) that can represent 0 and 1 simultaneously. This dual-state representation allows quantum computers to perform certain calculations exponentially faster than their classical counterparts, such as factoring large numbers or simulating molecular structures. However, significant technical hurdles remain, including maintaining qubit stability (quantum coherence) and mitigating errors caused by environmental interference.

Correct: B

The correct answer (Option B) captures the core idea that quantum computers leverage qubits for speed advantages but encounter significant technical challenges. Option A is incorrect because the paragraph explicitly mentions practical experimentation. Option C contradicts the passage by claiming classical superiority. Option D mentions quantum coherence but reduces the explanation to one detail, ignoring the broader context.