While the OA to this question uses a type of construction, an ellipsis, with which many test-takers may not be familiar, the right answer to this question can be found via using some basic SC skills to eliminate all the wrong answers.
So, let's discuss how you could get this one right without knowing exactly why the right answer is right.
Approximately 75 million people visit France every year, more than any other country.A. more than
The complete sentence created via using this choice compares 75 million people to any other country. That comparison doesn't make sense.
B. more than visit
Here's the version created via using this choice.
Approximately 75 million people visit France every year, more than visit any other country.Does it sound a little weird? Maybe. Are all the other choices clearly flawed? Yes.
You can think of this choice in the following way. If you add the word "people", which has been left out of the second part of the sentence, you get the following.
Approximately 75 million people visit France every year, more people than visit any other country.In certain cases in sentence construction, leaving out repeated words is considered a correct practice. In this case, the word "people" can be correctly left out of the second part to create what is called an ellipsis.
C. more than those of
Here's the sentence created via using this choice.
Approximately 75 million people visit France every year, more than those of any other country.This version might appear to be correct in a way, but let's use some logic to eliminate it. The expression "those of" is used to express possession. What does France possess that is "more than those of any other country"? Nothing mentioned in this sentence. So, no valid comparison is made in this version.
D. which is more than
Here's the sentence created via using this choice.
Approximately 75 million people visit France every year, which is more than any other country.There are two obvious errors in this one. The first is that the pronoun "which" has no clear referent. The second is that whatever "which" might refer to, there is nothing in the sentence that could be "more than" a country.
E. which is more visitors than
Here's the complete sentence.
Approximately 75 million people visit France every year, which is more visitors than any other country.One might wonder whether in this version "which" somehow refers to 75 million people, since "which" appears in "which is more visitors". The truth is that, even in this version, "which" does not have a clear referent. You don't have to be about that flaw to eliminate this choice though, because "more visitors than any other country" compares "visitors" to "any other country." So, it looks as if this choice is out as well.
So, yes, the OA, B, might sound a little strange if you are not familiar with ellipses. At the same time, you can eliminate C, D, and E pretty easily. Once left with A and B, you have to make a judgement call. Since A seems to compare people to a country and B, while weird, at least doesn't have any clear errors, you could go with B and get this one right.