Determine which of the following transformations are linear transformations.**A. **The transformation T defined by T(x1,x2,x3)=(1,x2,x3)T(x1,x2,x3)=(1,x2,x3)**B. **The transformation T defined by T(x1,x2)=(2x1−3x2,x1+4,5x2)T(x1,x2)=(2x1−3x2,x1+4,5x2).**C. **The transformation T defined by T(x1,x2)=(4x1−2x2,3|x2|)T(x1,x2)=(4x1−2x2,3|x2|).**D. **The transformation T defined by T(x1,x2,x3)=(x1,x2,−x3)T(x1,x2,x3)=(x1,x2,−x3)**E. **The transformation T defined by T(x1,x2,x3)=(x1,0,x3)