What is the value of\[a{{x}^{2}}+\text{ }bx+c\text{ }at\text{ }x=\frac{+b}{a}?\]

• A. a
• B. \[{{b}^{2}}-4ac\]
• C. \[c+\frac{2{{b}^{2}}}{a}\]
• D. \[25{{x}^{2}}+\frac{1}{4{{x}^{2}}}\]