It's obviously a square, so we can rule out choices C and D.
Now we have to rule things out to find the right choice from A or B.
It's definitely a rectangle because it has four sides and four right angles. It is also a quadrilateral because it has four sides, and a parallelogram because it has sides that are parallel to each other.
Is it a trapezoid? No. A trapezoid only has one pair of parallel sides, and this shape has two pairs.
Therefore, B is the correct answer.
