If $a , b , c$ are distinct odd natural numbers, then the number of rational roots of the polynomial $a x ^ { 2 } + b x + c$ (A) must be 0 . (B) must be 1 . (C) must be 2 . (D) cannot be determined from the given data.
If $a , b , c$ are distinct odd natural numbers, then the number of rational roots of the polynomial $a x ^ { 2 } + b x + c$\\
(A) must be 0 .\\
(B) must be 1 .\\
(C) must be 2 .\\
(D) cannot be determined from the given data.