A 5-year-old, intellectually impaired male is brought to the city from a rural community for evaluation. A careful history reveals intellectual impairment in a number of other family members, especially the males. Physical examination is remarkable for a long face with large ears, a large jaw, and bilateral enlargement of the testes. This presentation is most suggestive of which of the following in this patient?

1. A)Down syndrome
2. B)Edwards syndrome
3. C)Klinefelter syndrome
4. D)Turner syndrome
5. E)Fragile X syndromeGABARITO