How is this grammar question correct?

Question

The idea of a transatlantic telegraph cable linking North America and was originally proposed in 1845, but not until 1866 did such an ambitious undertaking become a lasting success.

According to the source, Kaplan, the question is right. I see that the question is right, but I don't understand how it is right.

Right after "and" I get confused.

This is a hint they give: Don't mistake formal or complex sentences structures for grammatical errors.

Answer 1

i don't know

Answer 2

The entire thing seems correct to me except for that "and." Strange question you have there.  

Answer 3

No, it isn't correct, at least not as you have written it.  the "and" must link to something (presumably you want to insert Europe).  Once you add that second location, the sentence does become correct.

Answer 4

It is not right.

"North America and was originally. . ."

Trust me on this.  It's not right.  

Answer 5

Even Kaplan makes mistakes... That question is incorrect. It should read:

The idea of a transatlantic telegraph cable linking North America and EUROPE was originally proposed in 1845, but not until 1866 did such an ambitious undertaking become a lasting success.

The editors just made a mistake (it actually is very common).