"C" isn't really possible when you think about it. Unless the speakers were no wider than half the width of my head and placed next to each other that is.
My speakers are aimed straight ahead so answer D. (Thiel CS6 spaced 8 feet apart and I listen at ten feet from the center point of an imaginary line drawn between the fronts of the baffles.
My speakers are aimed straight ahead so answer D. (Thiel CS6 spaced 8 feet apart and I listen at ten feet from the center point of an imaginary line drawn between the fronts of the baffles.