The reduced row-echelon forms of the augmented matrices of four systems are given below. How many solutions does each system have? a. b. 0 14] 1 -19 OA. No solutions B. Infinitely many solutions C. Unique solution D. None of the above To 1 0-12] 0 0 1 10 A. Unique solution B. No solutions C. Infinitely many solutions O D. None of the above

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