The augmented matrix is in row-echelon form. Assume that the variables are x, y, and z and use back substitution to obtain the solution of the associated system of linea 1 2 1 4 0 1 -3 11 0 0 1 - 3 Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. O A. There is one solution. The solution set is { } (Simplify your answer. Type an ordered triple, using integers or fractions.) O B. There are infinitely many solutions. The solution set is the set of all ordered triples { . z)}, where z is any real number. (Type expressions using z as the variable. Simplify your answers.) O C. The system is inconsistent. The solution set is ø.

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