10th og 62 asking for help

62. Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.
                

(A) changing the measured strain across a fault zone and varying
                

(B) changing measurements of the strain across a fault zone, and varying
                

(C)
                changing the strain as measured across a fault zone, and variations of

(D) changes in the measured strain(force)across a fault
                zone, and variations in (d)

(E) changes in measurements of the strain across a
                fault zone, and variations among

问题：请教，关于changing这种动名词的用法，OG在11版中解释为   tilting in this case is used as noun ,just as deformations and flustuations are noun.A,B ，C中的changing resemble tilting in the ing form,but they are not parallel ,because they are used as verbs rather than as noun.

该如何理解？changing 可以看作是动名词形势阿，动名词后面也可以带宾语 changing the measured strain .怎么就不能和tilting形成平行？我的理解是，段落中强调的是 changs, 强调这个结果，changing 强调的是这个变化的动作，即便如此，依旧不影响changing 作为动名词和tilting 形成平行阿？

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