Final answer:
When solving a system of equations, the statement that results in infinite solutions is 'all of the above' (D).
Step-by-step explanation:
In a system of equations, if two or more equations represent the same line or are equivalent, then the system has infinite solutions. This means that any value that satisfies one of the equations will also satisfy the other equations. So, when solving a system of equations, if you encounter equations such as x = 3, 7 = -7, or 2 = 2, which all express the same thing and are true for any value of x, then the statement 'all of the above' (D) results in infinite solutions.