Researchers compared corn yield (bushels per acre) on four farms using different irrigation methods: Farm 1 (flood), 110; Farm 2 (sprinkler), 135; Farm 3 (drip), 178; Farm 4 (subsurface drip), 192. The researchers argued that newer drip-based methods substantially outperform older flood irrigation. To support this, they pointed to ______
Which choice most logically completes the text using the data above?
- A
Farm 2's sprinkler yield of 135.
- B
Farm 1's flood-irrigation yield of 110.
- Ccheck_circle
the gap between flood (110) and subsurface drip (192), nearly 75% more yield.
- D
the modest difference between drip and subsurface drip.
Explanation
The claim is that drip methods substantially outperform flood. Choice B directly quantifies this gap (110 vs. 192), supporting "substantially outperform."