Determine whether the following statement is true or false and explain why. The augmented matrix for a system of three equations in three unknowns has four columns. Question content area bottom Part 1 Choose the correct answer below. A. The statement is true. The first three columns each represent one of the equations, and the final column always contains zeros. B. The statement is true. The first three columns represent the coefficients of the unknowns, and the fourth column represents the constant on the right side of the equation. C. The statement is false. Since there are three equations and three unknowns, the corresponding matrix only has three columns. D. The statement is false. The number of columns in the matrix corresponds to the number of equations. So, there must only be three columns