When I got back from school we installed the 2 optical cables in the tubes who are in the wall . We were lucky and did n't have to remove the Gyproc wall . So now he can finally close all the holes and start the wallpaper and painting . Now there 's one problem , before he can start the wallpaper he needs my electricity cable of the tv .
According to the above context, choose the best option to answer the following question.
Question: Where were they before they installed the optical cables ?
Options:
A. They were on the way to school .
B. They were in school .
C. None of the above choices .
D. They were at home waiting for the cables .


B