Multiple choice general knowledge

The Shader Model introduced with Direct3D 10, the Unified Shader Model, is also known as :

  1. Shader Model 4.0

  2. Shader Model 5.1

  3. Shader Model 2.1

  4. Shader Model 3.0

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A Correct answer
Explanation

Direct3D 10 introduced the Unified Shader Model as Shader Model 4.0, which unified vertex, pixel, and geometry shaders under a common architecture using a common shader core.