Multi-select problem: How does the next paragraph end?

After preparing the pipe, the man puts some rubber compound around the pipe and attaches a new gasket. the video

Available options: (1). ends with a closing caption shown on the screen.; (2). ends with the words " just in case! " overlaid.; (3). is moving towards the final product.; (4). ends and everyone except for the man is shown smoking again.;
(1).