What does a directed coupling map edge mean?

Question: In a directed coupling map, what does an edge from qubit i to qubit j usually indicate? A) Qubit i must always be measured before qubit j B) Qubit j has higher temperature than qubit i C) A two-qubit gate direction may be supported from i as control to j as target D) Qubit i and j are mathematically identical Correct: C Explanation: A directed coupling map describes allowed physical connectivity and directionality for two-qubit operations. Direction can matter when compiling circuits for specific hardware. Topic: quantum computing / coupling map / hardware topology