Step 1: Understanding the Correct Verb Form
The correct verb form here is "rephrased" because the action of rephrasing the report is completed. The past simple tense is appropriate in this context to show a completed action in the past.
Step 2: Evaluating the Other Options
- "Rephrase" (Option A) is in the present tense, which does not fit the context of an action that has already occurred.
- "Have rephrased" (Option B) is in the present perfect tense, which is typically used to describe actions that have an effect on the present or actions that happened at an unspecified time. It is not the best choice for this sentence.
- "Rephrasing" (Option D) is the present participle and does not fit the sentence structure.
Step 3: Conclusion
Thus, the correct verb form is "rephrased," making the sentence: "She rephrased the report in order to clear the essential points."