After the twelfth dot, two thirds of the way down the page, the transcript of this long session tails away into blank paper. I suppose what's happened is this. He has gone on staring out of the window thinking and she has gone on staring at him waiting with such absorption that neither of them noticed the tape had run out.
Select from options. Does this next sentence follow, given the preceding text?
the tape had run out

Select from: (I). Yes (II). No (III). It's impossible to say
(I).