From the context we may figure out that the word "plagued" (Paragraph 1) means ______.

A．generation gaps
B．work styles of different age groups
C．lack of mutual understanding between the old and the young
D．imperfect communication between old and young workers

A．be patient and tolerant
B．realize that both work styles are productive
C．make efforts to avoid doing damage to the other's productivity
D．make compromises to bridge the gulf between them