What does the Sampler primitive return?

Question: What is the Sampler primitive mainly designed to return? A) Samples or probability-like distributions over measured bitstrings B) Ground-state energies only C) Hamiltonian matrix decompositions only D) Coupling-map diagrams only Correct: A Explanation: The Sampler executes quantum circuits and returns sampled measurement outcomes. It is useful when the algorithm depends on output bitstring distributions rather than direct expectation values. Topic: quantum computing / Qiskit / Sampler