The correct answer is option 4) i.e. Bering Strait.
Bering Strait links the Arctic Ocean with the Bering Sea and separating the continents of Asia and North America at their closest point.
The International Date Line established in 1884, passes through the mid-Pacific Ocean and roughly follows a 180 degrees longitude north-south line on the Earth.
When we cross the International dateline from East to West we move up one day and when we cross back the line from West to East we move down one day.
The international dateline is a zigzag line.
Note:
Longitude is defined as imaginary lines called meridians that run from the north to the south pole.
There are a total of 360 meridians.
The Prime Meridian runs through the Greenwich Observatory in England, the location agreed upon by a conference in 1884 to be 0 degrees