Which of the following lattices has the highest packing efficency (a) simple cubic, (b) body-centred cubic, and (c ) hexagonal close-packed lattice?

Which of the following lattices has the highest packing efficiency ?

Which of the following lattices has the highest packing efficiency (i) simple cubic (ii) body-centred cubic and (iii) hexagonal close-packed lattice ?

Which of the following lattice has the highest packing efficiency (i) simple cubic (ii) body-centred cubic (iii) hexagonal close-packed lattice.

Which of the following lattices has the highest packing efficiency? (i) Simple cubic (ii) Body-centred cubic (iii) Hexagonal close-packed lattice