There is a pattern behind the placement of the shapes and colours within the grid. Can you identify the pattern, and work out which of the squares below correctly fills the vacant space?
![GCGridlock001.png](https://images.squarespace-cdn.com/content/v1/52711462e4b0932c24aa05ae/1591092592384-UDYA60D8ISI5Y4Q1HE3F/GCGridlock001.png)
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