Attention is a psychological state that selectively points to and focuses on a certain object or activity. attention can be divided into intentional attention and unintentional attention according to whether it is generated and maintained out of conscious intention and effort.
According to the above definition, which of the following description of the students' states belongs to intentional attention?
Mr. Liu said, the scope of this examination is announced below. all the students immediately took out the book and wrote it down