33) B

We need to identify a statement which can prove or say that roads are getting safer.

A – Wrong
This does not prove that roads are safer.

B – Wrong
Mentioned in the article already.

C – Wrong
This does not prove that roads are safer.

D – Correct
This allows us to trust the statistics provided in the text. This proves that roads are becoming safer.

E – Wrong
Mentioned in the article already.

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