A 2023 air-quality monitor recorded ozone (ppb) at four urban sites on a hot summer day: Site A, 56; Site B, 62; Site C, 89; Site D, 64. The researchers concluded that Site C's ozone level was anomalously high. To support this, they pointed to ______
Which choice most logically completes the text using the data above?
- Acheck_circle
Site C's reading of 89, well above the cluster of A, B, and D readings (56-64).
- B
the average reading across sites.
- C
Site A's reading of 56.
- D
Site D's reading of 64.
Explanation
"Anomalously high" requires showing C's reading sits far above the cluster. Choice B captures both C's value and the contrast with the tight cluster of the other three sites.