问题详情

What does the professor imply about the use of colors in newspapers？

A．It has been greatly influenced by reader preferences.

B．It is more effective than early research indicated.

C．It has not resulted in significant increases in the number of readers.

D．It has been neglected in the study of journalism.

此题为多项选择题。请帮忙给出正确答案和分析，谢谢！