The proportion of women in the United States who drink at least moderate amounts of alcohol during pregnancy is about ________, yet the rate of fetal alcohol syndrome is ________ in some Aboriginal communities than it is in the United States.
a. 10 percent; 30 times lower
b. 1 percent; 15 times higher
c. 4 percent; 40 times higher
d. 20 percent; 20 times lower