Please help!

The matrix associated with the solution to a system of linear equations in x, y, and z is given. Write the solution to the system, if it exists. 1 0 9 9 01 -7 -6 0 0 0 0 Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. O A. X= . y= and z = (Simplify your answers.) O B. There are infinitely many solutions. If z is allowed to be any real number, then x = and y = (Type expressions using z as the variable.) O C. There is no solution