雅思阅读题在线练习：北京新航道雅思小编为大家搜集了一段雅思阅读材料，读下面的一篇文章并选出最合适的标题：
The attitude of the scientific community towards the unconscious mind has shifted dramatically in recent years. While once viewed as a lazy reservoir of memories and non-task oriented behaviour, the unconscious is now regarded as an active and essential component in the processes of decision making.
Historically, the unconscious mind was considered to be the source of dreams and implicit memory (which allows people to walk or ride a bicycle without consciously thinking about the activity), as well as the storing place for memories of past experiences. But recent research reveals that the unconscious brain might also be an active player in decision making, problem solving, creativity and critical thinking. One familiar example of the operation of the unconscious in problem solving is the well-known phenomenon of the "eureka moment", when a solution to a problem presents itself without the involvement of active thinking.
A) Scientists present new findings about the unconscious mind
B) Our growing understanding of the role of the unconscious
C) How humans solve problems
D) What is a “eureka moment”?
