Stephen Has a Round Face; a Broad, Flat Nose; Small

Stephen has a round face; a broad, flat nose; small, downward-sloping folds of skin at the inside corners of his eyes; a protruding tongue; small, squarish hands; and unusually short arms and legs in relation to his body.He also suffers from heart and respiratory problems.What disorder does Stephen most likely have?

A) phenylketonuria
B) Down syndrome
C) fragile X syndrome
D) Klinefelter's syndrome

Correct Answer:

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