— Do you know ______ buy the book Harry Potter?

— The book is _____ popular that you can buy it at any bookshop. [ ]

A. where can I, so

B. where can I, such

C. where I can, so

D. where I can, such

公司状态检修工作全面覆盖电网交直流输变电及配电的一、二次主要设备和（）。