The correct option is
D A closed figure with four straight sides and four angles is called a quadrilateral.
Let us consider option 'a'.
It has curved edges. So, it is not a quardrilateral.
Let us consider option 'b'.
It has five straight sides. So, it is not a quardrilateral.
Let us consider option 'c'.
It has only three straight sides. So, it is not a quardrilateral.
Let us consider option 'd'.
It has four straight sides and four angles. Therefore, this figure of trapezoid is the correct answer.