In the table given below, dimensions and angles of various crystals are given . Complete the table by filling the blanks.

Options

A. `{: (p,q,r,s,t),(90^(@), a= b ne c, alpha= beta =gamma =90^(@), a= b ne c, 120^(@)):}`
B. `{: (p,q,r,s,t),(90^(@), a= b ne c, alpha= beta =gamma =90^(@), a= b ne c, 120^(@)):}`
C. `{: (p,q,r,s,t),(90^(@), aneb = c ,alpha = beta = gamma = 120^(@), a ne b ne c,90^(@)):}`
D. `{: (p,q,r,s,t),(120^(@),a ne b ne c ,alphane beta ne gamma ne 90^(@), a ne b = c ,120^(@)):}`

Answer

A

Explanation

For cubic,`a= b = c, alpha= beta = gamma =90^(@)`
Tetragonal, `a= b ne c, alpha = beta = gamma= 90^(@)`
Orthorhombic, `a ne bec, alpha = beta = gamma= 90^(@)`
Hexagonal, `a= b ne c ,alpha= beta = 90^(@), gamma =120^(@)`