Which sentence contains a dangling modifier?

• A. After reviewing the report, we found surprising findings.
• B. After reviewing the report, the findings were surprising.
• C. The report was reviewed, then surprising findings were found.
• D. Reviewing the report, the findings were surprising.

Answer: (B)

A modifier at the front of a sentence should clearly describe the person or thing that performs the action in the main clause. When the introductory phrase says someone reviewed the report but the following clause centers on a noun that can’t do the reviewing, the sentence becomes awkward and unclear—a dangling modifier.

In this case, the opening phrase After reviewing the report is meant to tell us who reviewed. The main statement, the findings were surprising, centers on the findings as the subject. Since the findings aren’t the ones who did the reviewing, the introductory phrase ends up attached to the wrong noun, creating the dangling effect. That’s why this sentence is considered incorrect and the best choice for illustrating a dangling modifier. A clearer version would be After reviewing the report, we found the findings were surprising.

The other sentences avoid that misattachment. For example, the reviewer is the one doing the action, so the modifier properly links to the subject in that sentence. If you rewrote the dangling option to make the actor explicit—After reviewing the report, we found the findings were surprising—it would be correct.