GMAT Sentence Correction (SC) | Re: Floating in the waters of the equatorial Pacific, an array

Ruling out an option because of its ambiguity should, in my humble opinion, be the last resort of a test-taker.

Floating in the waters of the equatorial Pacific, an array of buoys collects and transmits data on tong- term interactions between the ocean and the atmosphere,[s] interactions thataffect[/] global climate.

(A) atmosphere, interactions that affect
Although not the best answer, it still prevails over the others.
...

---