Temporal relations can be found

Temporal relations can be found in "____________".
A、I’d love to join in. Only I don’t know howto play.
B、All the figures were correct. Yet the total came out wrong.
C、I was not informed. Otherwise 1 should have taken some action.
D、All the time, the Guard was looking at her, first through a telescope, and then through a microscope.
【正确答案】：D