Identify the sentence that is correctly punctuated.

a. Our goal is simple: we aim to be the best in the industry.
b. Our goal is simple, we aim to be the best in the industry.
c. Our goal is simple—we aim to be the best in the industry.
d. Our goal is simple: we aim to be the best, in the industry.

No, not c.

Would it be a

Not sure if my second answer went through. I think it's A

Yes, it's A.

Be sure to find the other post with this set of sentences in it. You'll find a link there that you should bookmark for future reference -- for grammar, usage, punctuation, etc.

The sentence that is correctly punctuated is option c. "Our goal is simple—we aim to be the best in the industry."

Explanation: In this sentence, the punctuation mark used is an em dash (—), which is the correct punctuation to separate the thoughts or clauses in the sentence. The em dash is used to emphasize or set apart a phrase or clause within the sentence. In this case, it separates the main statement "Our goal is simple" from the subordinate clause "we aim to be the best in the industry." The em dash provides a clearer separation of the thoughts compared to other punctuation marks like colons (option a) or commas (option b and d).