What are the correct axial distance and axial angles for rhombohedral system?

Options

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

Answer

A

Explanation

For rhombohedral system `a=b=c,alpha=beta=gammane90^(@)`.