Since telecommuting has become more common, workers have needed to develop communications skills that
a. are clear and even in tone
b. do not depend on face to face contact
c. cut across multiple formats
d. all of the above

Workers are to develop communication skills that are clear and even in tone. These are very essential especially when working in a telecommunication company because large number of the clients are foreign and in order for them to understand you should be speaking in a clear and even tone. You should sound confident when talking. For them, to believe and understand you.

Prohibition outlawed production and sale of alcohol. (by the way al capone rised during these times)