Multiple choice
Run this circuit. What is qubit 0's Bloch X-component — the expectation value ⟨X⟩?
// X|0> = |1>, then H|1> = |-> = (|0> - |1>)/sqrt(2). const c = circuit(1); c.x(0); c.h(0); return c;
Commit your prediction for ⟨X⟩ of qubit 0 — then run it.