Develop a general approach that can be applied to any cubic crystal structure for how to determine the number of whole atoms in the unit cell. What is the formula for calculating the number of whole atoms in a cubic crystal unit cell?
a) ( N = V//{1}/{8} )
b) ( N = V × /{1}/{2} )
c) ( N = V//{1}/{2} )
d) ( N = V × /{1}/{8} )