Becky's 2-Year-Old Son Can't Walk Because He Was Born with Spina

Becky's 2-year-old son can't walk because he was born with spina bifida.To reduce the chances that her next baby is born with this birth defect or related disorders,Becky should _____.

A) consume green leafy vegetables,drink orange juice,and take a folic acid supplement before getting pregnant
B) take pantothenic acid,B-6,and B-12 supplements before getting pregnant
C) take iron,zinc,and magnesium supplements during the first month of pregnancy,then eat more whole-grain breads and cereals for the remaining months of the pregnancy
D) eat at least 3 ounces of fatty fish three times a week,take vitamin A and D supplements,and drink more fat-free milk during the first three months of pregnancy