Consider a body-centered tetragonal lattice with lattice constants a = b = a0 and \(c=\frac{a_0}{2}\). The number of nearest neighbours, the nearest neighbour distance, the number of next nearest neighbours and the next nearest neighbour distance, respectively, are
1
\(6, \frac{1}{2} a_0, 8, \frac{\sqrt{3}}{2} a_0\)
2
\(8, \frac{\sqrt{3}}{2} a_0, 6, a_0\)
3
\(2, \frac{1}{2} a_0, 8, \frac{3}{4} a_0\)
4
\(8, a_0, 6, \frac{4}{3} a_0\)