What is dynamical decoupling used for?

Question: What is the purpose of dynamical decoupling in quantum execution? A) To make CNOT gates irreversible B) To convert quantum outputs into SQL rows C) To insert pulse or gate sequences that help suppress idle-qubit decoherence D) To increase the number of measurement shots automatically Correct: C Explanation: Dynamical decoupling is an error-suppression technique that applies carefully chosen sequences during idle periods to reduce the effect of unwanted interactions with the environment. Topic: quantum computing / error suppression / dynamical decoupling