Which statement best defines the solution set of a system of linear inequalities?

• A. The set of all points that satisfy every inequality in the system, represented by the overlap of shaded regions.
• B. The unique intersection point of the boundary lines when at least two lines cross at a single coordinate.
• C. The set of points that make at least one of the inequalities true, shown by any shaded area from any inequality.
• D. Any points on the boundary lines regardless of shading, because boundaries are always solutions for inequalities.

Answer: (A)