Aisha's mother tends to hover over her whenever she complains of not feeling well. Typically, she puts Aisha to bed, reads her a story, and spends the day bringing the child her favorite foods. From a behavioral perspective, Aisha's mother may be increasing the child's risk of developing a somatic symptom disorder because she is A) negatively reinforcing complaints about physical health. B) classically conditioning avoidance behavior. C) punishing appropriate physical health complaints. D) reinforcing somatizing behaviors.