A
A degenerative bone disease affecting physical mobility in adults.
B
A developmental disability caused by differences in the brain affecting social interaction and communication.
C
An acute respiratory infection caused by viral pathogens.
D
A chronic nutritional deficiency leading to cognitive impairment in infants.
Correct answer: (b) A developmental disability caused by differences in the brain affecting social interaction and communication.
Explanation
Option B is correct because Autism Spectrum Disorder is a developmental disability caused by differences in the brain affecting social interaction and communication. The other options describe entirely different medical conditions.
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