Which of the following is mentioned as one of the causes of bad breath

A．they can't mask the bad odor long enough
B．they can't get to all the offending bacteria
C．their strong smell mixes with bad breath and makes it worse
D．they can't cover the thick layers of mucus

A．the shock and stress of the employees can be eased by careful planning and preparation
B．downsizing in an ethical way is the responsibility of the companies
C．when one company takes downsizing, the well-being of employees should be considered as an important part
D．the communication between management and labor should be honest, timely, and effective