Please solve the following problem :
Find the complete solution set of the inequality $\frac{1–\sqrt{21 – 4x – x^2}}{x + 1}\ge 0$
(A) [2$\sqrt{6}$ –2, 31] 
(B) [–2 –2$\sqrt{6}$, –1)
(c) [–2–2$\sqrt{6}$,–1] $\cup$[2$\sqrt{6}$–2, 3]  
(D)[–2–2$\sqrt{6}$,–1] $\cup$[2$\sqrt{6}$–2, 3]