Why are many shots needed?

Question: Why do quantum programs often require many shots? A) To estimate output probabilities from repeated measurements B) To permanently store every qubit state C) To avoid using quantum gates D) To convert qubits into CPUs Correct: A Explanation: A single measurement gives only one classical outcome. Running the same circuit many times allows us to estimate how frequently each outcome appears, which approximates the circuit's probability distribution. Topic: quantum computing / measurement / sampling