C

Explanation:
The correct answer is “C. Perfect negative.” A perfect negative correlation is depicted when all points fall on a straight line and move in a downward trend, meaning as one variable (price) increases, the other variable (quantity supplied) decreases at a constant rate.

Run-down:
In a perfect negative correlation, the relationship between two variables is completely inverse, and changes in one variable lead to predictable and opposite changes in the other. This is depicted by all points forming a straight line with a downward slope.