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If a, b in R and ax^2 + bx +6 = 0,a!= 0 ...

If `a, b in R` and `ax^2 + bx +6 = 0,a!= 0` does not have two distinct real roots, then :

A

Minimum possible value of 3a+b is -2

B

Minimum possible value of `3a+b is 2`

C

ninimum possible value of `6a+b is-1`

D

Minimum possible value of `6a+b is 1`

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