For the series of shapes, the most likely the next step in the series is the 7 sides (heptagon). Option D. This is further explained below.
What are shapes?
Generally, shapes are simply defined as a person's or something's exterior shape, outline, or features.
In conclusion, As the number of sides increases by 1, it becomes more difficult to complete. Heptagon, there are only seven sides to the figure mentioned in.
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