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

Options

A. `p-90^(@),q-a=bnec,r-alpha=beta=gamma=90^(@),s-a=bnec,t-120^(@)`
B. `p-120^(@),q-a=b=c,r-alpha=90^(@),beta=gamma=120^(@),s-anebnec,t-90^(@)`
C. `p-90^(@),q-aneb=c,r-alpha=beta=gamma=120^(@),s-anebnec,t-90^(@)`
D. `p-120^(@),q-anebnec,r-alphanebetanegammane90^(@),s-aneb=c,t-120^(@)`

Answer

A

Explanation

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