Option 1 -> Both curves initially rise, reach a maximum, then decline due to the law of diminishing returns, creating an inverted U-shape.
Option 2 -> Incorrect, U-shaped curves decline first then rise, which contradicts production theory.
Option 3 -> Incorrect combination, both curves follow the same inverted U pattern.
Option 4 -> Incorrect combination, both curves follow the same inverted U pattern.
Hence, Both Inverse 'U' Shaped -> In production theory, both Average Product (AP) and Marginal Product (MP) curves exhibit an inverted U-shape (∩). Initially, as variable input increases, both AP and MP rise due to increasing returns. They reach their respective maximum points, with MP peaking before AP. Subsequently, both curves decline due to the Law of Diminishing Returns. The MP curve intersects the AP curve at AP's maximum point. This inverted U-shape reflects the three stages of production: increasing returns, diminishing returns, and negative returns. -> correct