निम्नलिखित वाक्य को पैसिव वॉइस से एक्टिव वॉइस में परिवर्तित कीजिए: It was being suggested by multiple sources that the operation had been compromised internally.

Choose the correct passive voice transformation of the given sentence: The dedicated students, who had been preparing all night, were answering the difficult questions during the final examination.

Change the following sentence into the Active voice: A new computer has been bought for the office.