Final answer:
Books with complicated plots and literary devices like flashbacks, foreshadowing, and symbols are most suitable for children ages 9-14, who have the cognitive ability to understand and appreciate these elements.
Step-by-step explanation:
Books that incorporate complex elements such as complicated plots, flashbacks, foreshadowing, and symbols are typically better suited for older children who have a more developed understanding of language and narrative structure. Considering the development stages of children, those within the age range of 9-14 are more likely to appreciate and comprehend these challenging literary devices. This age group corresponds to upper elementary and middle school levels, where students are transitioning into more advanced reading and critical thinking abilities.
The use of sophisticated storytelling techniques corresponds with a child’s growing cognitive and linguistic capabilities. Children ages 9-14 are at a stage where they can handle more intricate plot developments and start to grasp the subtler aspects of storytelling, such as symbolism and foreshadowing, which might be too advanced for younger readers.