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The pair of equations a1x+b1y+c1=0" and ...

The pair of equations `a_1x+b_1y+c_1=0" and "a_2x+b_2y+c_2=0` has unique solution, then……..

A

`(a_1)/(a_2)!=(b_1)/(b_2)`

B

`a_1/a_2=b_1/b_2!=c_1/c_2`

C

`a_1/a_2=b_1/b_2=c_1/c_2`

D

`b_1/b_2!=c_1/c_2`

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