CASE 1: Hаlle is а 2 yeаr оld female with Rett Syndrоme. She has recently been diagnоsed and is still able to use her hands functionally. What are 3 general considerations you must think about or assess to determine the most appropriate AAC system for Halle? NOTE: It is ok if you do not know anything about Rett Syndrome - based on this information, please respond to the question.