game programming, please answer

4. A game rendering at a constant 30 FPS (frames per second) a) Will update its game state 30 times each frame b) Will update its game state 30 times each second c) Uses a deltaTime construct to control frame rate d) Will have a frame time of 1/30th of a second 5. Unity uses a) Variable timing for game object updates and fixed timing for physics b) Variable timing for physics updates and fixed timing for game object updates c) Variable timing for animation updates and fixed timing for game objects d) Variable timing for game object updates and fixed timing for animations 6. Which of the following is not true: a) We can construct object hierarchies in any object oriented programming language b) We can construct component models in C sharp c) Component models and object hierarchies are compatible d) Component models and object hierarchies are equivalent 7. When using a physics in Unity: a) We must separate code that handles physics from code that handles game logic b) We must use rigidbodies on our game objects c) We must use colliders on our game objects d) We get collisions for free 8. Perlin noise is a method for procedurally generating: a) Textures b) Minecraft worlds c) Collisions d) All of the above