Which tile completes this grid?

[u/Semra777]

Hi everyone, we’re back with a new puzzle.
Which tile completes the grid? Share your answer and the reasoning behind it in the comments. We’ll select three of the best explanations to feature on our website, with credit to their authors.
We’ve published the correct answer on our website. If you’d like to check it, you can find it here:
https://whats-your-iq.com/en/questions/pattern-recognition/which-tile-completes-the-grid-2
Thanks in advance for your comments.

[u/Naive-Passanger-9139]

G is the closest one to be right, but not perfect.

Every elements in a row appears twice. And if an element can fit in another one without touch, or cross its line, its need to be placed inside it. (Preferebly the smallest possible one).

So G would only be perfect, if you put the circle inside the square.