The pair of linear equations 3a+4b=k, 9a...

The pair of linear equations `3a+4b=k, 9a+12b=6` have infinitely many solutions when,

A

`K=-2`

B

`K=3`

C

`K=2`

D

`K=-3`

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The pair of linear equation 3a + 4 b = k, 9a + 12 b =6 have infinitely many solutions when ,

A

`k=-2`

B

`K=3`

C

`k=2`

D

`k=-3`

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