Answer:
D, E, and C would be regulars, and A and B would be irregulars.
Explanation:
It asks to define whether a shape is a regular polygon, irregular polygon, or neither. An irregular polygon is a polygon with no similar sides while a regular polygon is a shape with the same length sides. D, E, and C would be regulars, and A and B would be irregulars. If the shape is open, then it is not a polygon.