Which part of the article shows evidence of successful preparation for earthquakes?

Question

A
There is also lingering doubt that high-rise buildings can be made quake-proof.

B
These preparations led to fewer deaths when a quake hit Mexico City again in September 2017.

C
The government there is criticized for undoing some earthquake-preparation measures it pledged to do after a 1999 quake killed at least 17,000 people.

D
In India, efforts to improve engineering and building laws have mostly stalled, leading one expert to regret the lack of "champions for seismic safety."

Answer 1

The part of the article that shows evidence of successful preparation for earthquakes is:

B
These preparations led to fewer deaths when a quake hit Mexico City again in September 2017.