Venus's atmosphere is divided into layers including the troposphere, thermosphere, etc. The troposphere is the layer that is closest to Venus's surface. The distance from Venus and the troposphere's sulfuric acid content have a positive association. Interpret the meaning of the positive association with respect to the sulfuric acid content.

As you move closer to Venus, the sulfuric acid content increases.
As you move away from Venus, the sulfuric acid content decreases.
As you move away from Venus, the sulfuric acid content remains the same.
As you move away from Venus, the sulfuric acid content increases.
As you move closer to Venus, the sulfuric acid content remains the same.