For a cubic crystal structure which one of the following relation indicating the cell characteristic is correct ?

Options

A. `a = b = c and alpha = beta = gamma = 90^(@)`
B. `a ne b ne c and alpha ne beta ne gamma ne 90^(@)`
C. `a ne b ne c and alpha = beta = gamma = 90^(@)`
D. `a = b = c and alpha ne beta ne gamma ne 90^(@)`

Answer

A