Researchers measured methane emissions (kg/year) from four landfills before and after installing methane-capture systems: Landfill A, 4,200 → 1,250; Landfill B, 3,800 → 1,100; Landfill C, 5,000 → 1,400; Landfill D, 4,500 → 1,300. They concluded that methane-capture systems reduce emissions by roughly two-thirds across these landfills. To support this consistent reduction, they cited ______
Which choice most logically completes the text using the data above?
- A
Landfill B's post-installation emissions of 1,100.
- B
the highest absolute reduction at Landfill C.
- Ccheck_circle
the consistent ~70% drop in each landfill (4,200→1,250; 3,800→1,100; 5,000→1,400; 4,500→1,300).
- D
Landfill C's pre-installation emissions of 5,000.
Explanation
"Consistent ~two-thirds reduction" requires showing a similar percentage drop at every landfill. Choice B captures this uniform ~70% pattern across all four sites.