What is the writer's view in the reading passage He believes that ______.

A．managers need a degree and the ability to communicate
B．training needs to be done in groups to be successful
C．managers today must have good communication and leadership skills
D．industrial managers do not need to write letters

A．Mastectomy used to be considered the only safe course.
B．The chances of survival after a mastectomy are greater than after lumpectomy.
C．Mastectomy can decrease the patients' chances of a care.
D．Most women prefer lumpectomy.