Multiple choice
A 2-qubit molecular Hamiltonian is H = g1*Z0 + g2*Z1 + g3*Z0Z1 + (Y0Y1, X0X1 terms) with g1 = 0.3435, g2 = -0.4347, g3 = 0.5716. Evaluate its energy in the basis state |01> (qubit0 = 0 so <Z0> = +1; qubit1 = 1 so <Z1> = -1; the X0X1 and Y0Y1 terms vanish on a basis state). What is <H>?