Prospective Parents Can Be Tested to See If They Carry

Prospective parents can be tested to see if they carry the recessive gene responsible for cystic fibrosis. The test:

A) is most accurate for individuals of Mediterranean descent.
B) is accurate regardless of genetic mutations that might be involved.
C) is not accurate for individuals of Northern European descent.
D) is most frequently recommended for individuals with a family history of cystic fibrosis.