Bad Qubits — Learn Quantum by Doing

Multiple choice

Orbital angular momentum (quantum number ell) and spin angular momentum (quantum number s) obey the same algebra but differ in allowed values. Which statement is correct?

Orbital ell may be half-integer, while spin s must be an integer
Both ell and s must be half-integers only
Orbital ell must be a non-negative integer (0, 1, 2, ...), while spin s may be integer or half-integer (0, 1/2, 1, 3/2, ...)
Both ell and s are restricted to non-negative integers only