Convert the given sentence into active/passive voice. **Change the following sentence from active to passive: "The senior astronomer might have been carefully observing the unusual displacements in the asteroid’s orbit caused by gravitational anomalies."**

Options:

• A: The unusual displacements in the asteroid’s orbit caused by gravitational anomalies might have been carefully observed by the senior astronomer.
• B: The gravitational anomalies causing unusual displacements might have been observed carefully by the senior astronomer.
• C: The unusual displacements in the asteroid’s orbit might have been observing by the senior astronomer carefully.
• D: The senior astronomer was observing the unusual displacements carefully in the asteroid’s orbit

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