Answer:
c. Down syndrome.
Step-by-step explanation:
From the information above, the pediatrician would most likely diagnose Jason with down syndrome because the highlighted symptoms are all signs of a person with down syndrome.
Down syndrome is a medical condition related with autosomal disorder which consequently affects the Chromosome 21, also called automosal, of an individual. It is not associated with heredity nor is a recessive trait but simply an error/abnormal division of cells in Chromosome 21.
Some common clinical features of down syndrome are flat facial facial and head structure, intelligence disability, short neck, extra fold of skin over eyelids and neck,etc.