Answer:
The given coordinate is formed parallelogram.
B is correct.
Explanation:
The points (5, 3), (3, -4), (10, 3), and (8, -4) are the vertices of a polygon.
Please see the attachment for point plot and name of coordinate
A(5,3) B(3,-4) C(8,-4) D(10,3)
First we find the slope of two points




Slope of AB=Slope of CD=7/2
Slope of BC=Slope of AD=0
Opposite sides are parallel. Possible option is parallelogram.
Hence, The given coordinate is formed parallelogram.