Choose the correct description of the graph of the compound inequality. x - 3 < -9 or x + 5 greater than or equal to 10. a. a number line with an open circle on -6, shading to the left, and a closed circle on 5, shading to the right. b. a number line with a closed circle on -6, shading to the left, and an open circle on 5, shading to the right. c. a number line with an open circle on -6, a closed circle on 5, and shading in between. d. a number line with a closed circle on -6, an open circle on 5, and shading in between.