The inequality x+6≥x\sqrt{x+6}\ge xx+6≥x is satisfied for real xxx if and only if A−3≤x≤3-3\le x\le 3−3≤x≤3B−2≤x≤3-2\le x\le 3−2≤x≤3C−6≤x≤3-6\le x\le 3−6≤x≤3D0≤x≤60\le x\le 60≤x≤6E−6<x<6-6<x<6−6<x<6F0<x<30<x<30<x<3