The word “which” in the passage refers to

B

Từ which trong bài đọc ám chỉ đến

A. sự quản lý khoa học              B. triết học

C. năng suất                                         D. nghiên cứu thời gian và sự di chuyển

Dẫn chứng: At that time, his philosophy, which was concerned with productivity, but which was often misinterpreted as promoting worker interests at the expense of management, was in marked contrast to the prevailing industrial norms of worker exploitation.

=> Chọn B