Bad Qubits — Learn Quantum by Doing

Multiple choice

A general state of n qubits lives in a Hilbert space of dimension 2^n. Storing a general state by brute force as a full state vector therefore requires how many complex amplitudes?

n complex amplitudes (one per qubit)
2n complex amplitudes (two per qubit)
n^2 complex amplitudes
2^n complex amplitudes (one per basis vector)