Question

The following question presents a sentence, part or all of which is underlined. Select the answer that produces the most effective sentence; your answer should make the sentence clear, exact, and free of grammatical error. It should also minimize awkwardness, ambiguity, and redundancy.

Nobody knows exactly how many languages there are in the world, partly because of the difficulty of distinguishing between a language and the sub languages or dialects within it, but those who have tried to count typically have found about five thousand.

• A. And the sub languages or dialects within it, but those who have tried to count typically have found
• B. And the sub languages or dialects within them, with those who have tried counting typically finding
• C. And the sub languages or dialects within it, but those who have tried counting it typically find
• D. Or the sub languages or dialects within them, but those who tried to count them typically found
• E. Or the sub languages or dialects within them, with those who have tried to count typically finding

Answer 1

Answer: (A)

And the sub languages or dialects within it, but those who have tried to count typically have found

Option A is correct as "and" is used to join two sentences moreover use of conjunctions is correct. The sentence contains have found and tried to count rather than "counting" in option C I would suggest for option A.