Seismologists studying the earthquake that struck northern California in October 1989 are still investigating some of its mysteries: the unexpected power of the seismic waves, the upward thrust that threw one man straight into the air, and the strange electromagnetic signals detected hours before the temblor.


Seismologists studying the earthquake that struck northern California in October 1989 are still investigating some of its mysteries: the unexpected power of the seismic waves, the upward thrust that threw one man straight into the air, and the strange electromagnetic signals detected hours before the temblor.

A. the upward thrust that threw one man straight into the air, and the strange electromagnetic signals detected hours before the temblor

B. the upward thrust that threw one man straight into the air, and strange electromagnetic signals were detected hours before the temblor

C. the upward thrust threw one man straight into the air, and hours before the temblor strange electromagnetic signals were detected

D. one man was thrown straight into the air by the upward thrust, and hours before the temblor strange electromagnetic signals were detected

E. one man who was thrown straight into the air by the upward thrust, and strange electromagnetic signals that were detected hours before the temblor


Correct Answer Below (so you don’t see it while reviewing the question)

gmat tutoring consultations  823x288 test @2x 4

Correct Answer: A

This sentence correction explanation is coming soon. Submit the form to speed it up!

For some SC guidance, here’s a link to a breakdown of GMAT sentence correction. If you want to put this explanation to the front of the line then go ahead and copy/paste the question into the form below and hammer on the submit button.

  • This field is for validation purposes and should be left unchanged.