According to the text,men can learn from women's managerial style by:

A) using appropriate relationship building in the workplace.
B) being less subtle and ambiguous.
C) acting more assertive.
D) being more direct,especially when giving instructions.

The text mentions that women tend to use a more relationship-oriented approach to management, which involves building appropriate relationships in the workplace. Men can learn from this style by also using relationship building to create a more positive work environment. The other options of being less subtle, more assertive or direct may not necessarily be beneficial in all situations and may not be necessary to learn from women's managerial style.