1 . x2+ax+3=0

• A. $\left(-2\sqrt{3},2\sqrt{3}\right)$
• B. $\left(-\infty ,-2\sqrt{3}\right)$
• C. $\left(-\infty ,-2\sqrt{3}\right)\cup \left(2\sqrt{3},\infty \right)$
• D. $\left(2\sqrt{3},\infty \right)$

Answer: Option C

Explanation: