Somalian Geologists believe that the warning signs for

[tarakdutta]

Somalian Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Saturn’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 across a fault zone, and variations in
(E) changes in measurements of the strain across a fault zone, and variations among

Inspired by OG but names are changed. Hopefully, Manhattan instructors will let it pass.

My question is how
Sudden fluctuations in local seismic activity
Titling and other deformations of crust
Changes in measured strain
Variation in electrical properties of rocks ---- can be equal? BTW, D is answer

[Sage Pearce-Higgins]

They aren't equal, but they are all things that are 'warning signs for a major earthquake' i.e. they are logically parallel. Plus they're all nouns, so they're structurally parallel too. Be careful not to overdo parallelism - you don't have to make the items equal, you just need to make them, well, parallel. Look and see what's wrong with the other answers to understand this better.