Regarding Down Syndrome, Which of the Following Statements Is FALSE

Multiple Choice

Regarding Down syndrome, which of the following statements is FALSE?

A) Although Down syndrome is genetic, it is not usually hereditary, that is, it doesn't "run in the family."
B) Down syndrome is caused by an extremely thin area occurring on the X chromosome.
C) The age of the parents is a major factor in Down syndrome.
D) Down syndrome causes moderate to severe intellectual disability and a shortened life expectancy of around 49 years.