read the sentence. conservationists are considering urban runoff and they are tracking population growth but…

read the sentence. conservationists are considering urban runoff and they are tracking population growth but the magnitude of the situation has not been determined. according to the elements of style, what is the correct way to punctuate this sentence? conservationists are considering urban runoff and they are tracking population growth, but the magnitude of the situation has not been determined. conservationists are considering urban runoff, and they are tracking population growth but, the magnitude of the situation has not been determined. conservationists are considering urban runoff, and they are tracking population growth, but the magnitude of the situation has not been determined. no change

read the sentence. conservationists are considering urban runoff and they are tracking population growth but the magnitude of the situation has not been determined. according to the elements of style, what is the correct way to punctuate this sentence? conservationists are considering urban runoff and they are tracking population growth, but the magnitude of the situation has not been determined. conservationists are considering urban runoff, and they are tracking population growth but, the magnitude of the situation has not been determined. conservationists are considering urban runoff, and they are tracking population growth, but the magnitude of the situation has not been determined. no change

Answer

Brief Explanations:

When joining two independent clauses with a coordinating - conjunction like "and" or "but", a comma is used before the conjunction. The first part "Conservationists are considering urban runoff and they are tracking population growth" and the second part "the magnitude of the situation has not been determined" are independent clauses. Also, when there are two independent clauses joined by two coordinating conjunctions ("and" and "but" here), commas are placed appropriately before each coordinating conjunction.

Answer:

C. Conservationists are considering urban runoff, and they are tracking population growth, but the magnitude of the situation has not been determined.