The correct option is A All sides are not equal.
Say: Let’s read the question and observe the given images.
Ask:
∙ How will you describe the given shapes?
Ans: The given shapes have 4 sides and 4 vertices, and all 4 sides have the same length.
∙ What do we call shape 1?
Ans: Square
∙ Can you name shape 2?
Ans: Shape 2 is also a square, but it is turned sideways.
∙ Which of the options is not true about the shapes?
Ans: Option D, because all the sides are equal.
Hence, option D is correct.