QUESTION 4 оn Grаdescоpe: A system оf equаtions hаs been converted to an augmented matrix and row-reduced to the following reduced row echelon form: [ 1 0 0 2 0 1 0 3 0 0 1 2 0 0 0 0 ] {"version":"1.1","math":"left[begin{array}{ccc|c} 1 & 0 & 0 & 2 \ 0 & 1 & 0 & 3 \ 0 & 0 & 1 &2 \ 0 & 0 & 0 & 0end{array} right]"} Use this information to answer the following. Justify your answers.4(a) Which space contains the linear objects? (2-space, 3-space, 4-space?) 4(b) How many linear objects are in the system? 4(c) Do the objects intersect? If so, what does the intersection look like? A point, a line, a plane? Again, justify your answer.