What does the "S" term represent, and how does it alter the impact component in the IPAT model used to evaluate the total impact of human populations on the environment?
a) Sustainability; It reduces the impact by promoting environmentally friendly practices
b) Synergy; It magnifies the impact by considering the combined effects of various factors
c) Standardization; It adjusts the impact by accounting for differences in measurement units
d) Sensitivity; It modifies the impact by assessing the sensitivity of the environment to human activities