A watch loses 2 minutes in every 24 hours while another watch gains 2 minutes in every 24 hours. At a particular instant, the two watches showed an identical time. Which of the following statements is correct if 24-hour clock is followed?

The two watches show the identical time again on completion of 30 days.

The two watches show the identical time again on completion of 90 days.

The two watches show the identical time again on completion of 120 days.

None of the above statements is correct.