Which of the Following Would Indicate That a Disease Has

Multiple Choice

Which of the following would indicate that a disease has a genetic,rather than environmental,cause?

A) The disease has a specific age of onset.
B) The disease is cured by taking an antibiotic.
C) The disease occurs at the same rate in individuals that are exposed to a similar environment.
D) The disease occurs as frequently between close relatives as it does in unrelated individuals.