Plot the points A(-3, 2), B(-5, -4), C(-2, -4) and D(0, 2). What figure do you get on joining the points in order?

The figure should be a parallelogram

Generally spontaneous human combustion is something that still bewilders some, human combustion happens very rarely and doesn't affect the surrounding areas, so unless you want to set your self on fire, human combustion will remain spontaneous and very rare.