Identify the sentence that is punctuated correctly.

A. The operating costs, as he probably told you, are too high.

B. The operating costs, as he probably told you are too high.

C. The operating costs as he probably told you, are too high.

D. The operating costs as he probably told you are too high.

A

A is correct.

Yes, you're right.

Great choice! Sentence A is punctuated correctly.

The sentence that is punctuated correctly is:

A. The operating costs, as he probably told you, are too high.

The correct sentence with the proper punctuation is option A: "The operating costs, as he probably told you, are too high."

To identify this, you need to understand the rules of punctuating phrases that provide additional information within a sentence. In this case, the phrase "as he probably told you" is interrupting the main clause "The operating costs are too high."

According to the rules, when an interrupting phrase is placed in the middle of a sentence, it should be set off by commas on both sides. This is seen in the correct sentence where there are commas before and after the phrase. Thus, option A is the correctly punctuated sentence.