If the Concordance Rate for Alcoholism Were 50 Percent Among

Multiple Choice

 If the concordance rate for alcoholism were 50 percent among identical twins, which of the following would be true?

A) If you inherit the gene that encodes alcoholism, you will develop alcoholism.
B) If there is no alcoholism in your family, you will never develop a problem with alcoholism.
C) If your father suffers from alcoholism, you will not develop the problem as long as he is not involved in raising you.
D) If your twin struggles with alcoholism, you have an increased chance of having the same problem, but ultimately whether you do is also influenced by environmental factors.