The only incorrect statement for the packing of identical spheres in two dimension is:

Select the correct statement(s) related to hexagonal close packing of identical spheres in three dimensions :

Choose the only incorrect statement from the following

In hexagonal close packing of spherer in three dimensions.

In hexagonal close packing of spherer in three dimensions.

Correct the following statement by changing the underlined part of the sentence. In a hexagonal closest packing of identical spheres in two layers, one above the other, the coordination number of each sphere will be ul(12) .