The augmented matrix of a linear system has been reduced by row operations to the form shown Continue the appropriate row operations and describe the solution set of the 1 _ 3 0 0 _4 original system. 0 1 2 0 6 0 0 1 1 2 0 0 0 1 4 Select the correct ch0ice below and. if necessary n l in the answer boxes to complete your chorce if) A. The solution has infinitely many elements. "if B- The solution set contains one solution ( ' . , ] (Type integers or simplified fractions) . The solution set is empty