【单选题】Based on the experimental data, which of the following conclusions is the most reasonable one?
A.
Industrial sulfate affects pH levels to a greater extent than naturally occurring sulfate.
B.
Sufficiently warm water temperatures are needed in order for sulfate to affect the pH levels in lake water.
C.
In lake water, pH levels are sensitive to sulfate concentration levels.
D.
In lake water, sulfate concentration levels have little or no impact on pH levels.