Explanation:

- The Marginal Cost (MC) curve intersects the Average Cost (AC) curve at its minimum point.

- This is because when MC is below AC, AC is falling, and when MC is above AC, AC is rising.

- Therefore, they intersect at the lowest point of AC.

- Similarly, the MC curve also intersects the Average Variable Cost (AVC) curve at its minimum point.

- The reasoning follows the same logic as with the AC curve: below AVC MC causes it to decrease and above it, to increase.

- Option 1: Maximum, minimum – Incorrect, MC intersects at minimum points.

- Option 2: Minimum, Minimum – Correct for both intersections.

- Option 3: Minimum, maximum – Incorrect, both are minimum points.

- Option 4: Maximum, Maximum – Incorrect, both are minimum points.

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