Answer: A, Social stories
Explanation: Social Stories are a well-established and effective tool for teaching individuals with autism spectrum disorder (ASD) how to interact with other people. Social Stories are short narratives that provide clear and concrete information about social situations, social cues, and appropriate social behaviors. They are tailored to the individual's needs and can help them understand and navigate social interactions that may be challenging for them.
Phonics Worksheets, Geometric Shapes, and Word Search Puzzles are not typically used as specific tools for teaching social interaction skills to individuals with ASD. These tools are more related to literacy, mathematics, and cognitive skills, respectively, rather than social skills development.