What was the original design inspiration behind the triangle, circle, X, and square symbols on PlayStation controllers?

The design choices behind gaming hardware can reveal fascinating insights into product marketing and brand identity. PlayStation's iconic controller buttons have become synonymous with the brand, but do you know the reasoning behind their distinctive symbols? Test your knowledge about this influential product design decision that has remained consistent across multiple console generations and helped establish PlayStation's unique visual identity in the competitive gaming market.

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They represent the four fundamental gameplay actions in early 3D games: viewpoint (triangle), confirm (circle), cancel (X), and menu (square)
They were chosen because focus groups found them easier to remember than letters or numbers across global markets
They symbolize the four elements: air (triangle), water (circle), earth (square), and fire (X) to represent the immersive worlds PlayStation creates
They were designed to match the four-button layout of arcade machines that were popular when the PlayStation was first developed