[求助]GWD-4-29

Q29:

Floating in the waters of the equatorial Pacific, an array of buoys collects and transmits data on long-term interactions between the ocean and the atmosphere, interactions that affect global climate.

1. atmosphere, interactions that affect
2. atmosphere, with interactions affecting
3. atmosphere that affects
4. atmosphere that is affecting
5. atmosphere as affects

答案选A, 实在看不出道理, 哪位nn给解释一下?

主语是不是"an array of buoys ", 谓语是"collects and transmits ", between一直到atmosphere,修饰data,

那后面的interactions that....是什么?不解了.

这个interactions that affect是句末同位语吧!