Sentence Correction (SC) | The reason that tourists on safari are warned to keep

D) The reason that tourists on safari are warned to keep a distance from elephants is that elephants are just as dangerous as predators.

In my opinion, D is the closest contender. Why do you think it is wrong?

I think "The reason that X is that Y" is acceptable in GMAC's book.
https://gmatclub.com/forum/the-reason-t ... 99794.html

Can it
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