Because it is parallel, it will have the same slope. You can eliminate A,B, and C. If you plug in (-3,4 into option D, it would not work. If you plug it in for option E, it would work.
It is 1/4 of the area of the larger triangle...basically if you connect the three midpoints of the triangle's sides it creates four identical smaller triangles...
The perimeter is one half of the larger triangle...