Multiple choice
After running this circuit, what is the probability that all 4 qubits together read |0001⟩ (qubit 0 leftmost)?
const c = circuit(4); c.h(0); c.h(1); c.h(2); c.h(3); c.measure(0, 1, 2, 3); return c;
Commit your prediction for P(|0001⟩) — then run it.