Hi could someone help me solve this multiple choice questions I don't get what it's telling me to do

The system of equations Ax = c has solutions I -2 -2 3 -1 -4 _ _ x = 4 + p 1 + q 4 The solutlon set of the system Ax = 0 conSIsts of all vectors x = -3 2 0 \fA consistent system of linear equations in 9 unknowns is reduced to row echelon form. There are then 5 non-zero rows (i.e. 5 pivots). How many parameters (free variables) will occur in the solution? The system of equations given by x + 7y z = 5 8x 56y + 7Z = 34 x 732 + z = 5 has infinite solution(s). one solution(s). 0 Three distinct solutions. A no solution(s)