Pauline was born with a chromosomal disorder. She was diagnosed to have three rather than two number 21 chromosomes. She also suffered from learning disabilities. Her intellectual disability is a result of.
A. Edward's syndrome.
B. Asperger's syndrome.
C. Fragile X syndrome.
D. Down syndrome.

D. Down syndrome.

Explanation:

Down Syndrome is a genetic disorder caused by an error in cell division that results in the presence of an additional third chromosome 21 (trisomy 21). This disorder also causes difficulty in someone's learning ability therby leading to struggles to acquire knowledge.

In the case of Pauline, since she was born with a chromsomal disorder which also affects her intellectual ability,it is safe to say that her learning disability is caused by Down syndrome.

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