Your sister-in-law is amazed at her 9-year-old son. She can remember when her son was not able to sit and listen to a story for very long and now, he is able to listen intently and remember the story in very good detail. What two advances occur during middle childhood in information processing abilities that assist with his newly developed abilities? a) Visual scanning and search routines b) Attention and memory c) Motivation and diligence d) Decentering and critical processing