Question

which consequence can occur if a mother uses drugs during pregnancy?
allergies
high birth weight
longer term pregnancy
sudden infant death syndrome

Explanation:

Drug - use during pregnancy can have severe impacts on the fetus and infant. It can increase the risk of sudden infant death syndrome (SIDS) due to the effects of drugs on the developing nervous system and respiratory control. Allergies are not typically a direct consequence of prenatal drug - use. Prenatal drug - use usually leads to low birth weight, not high birth weight. It does not cause a longer - term pregnancy.

Answer:

sudden infant death syndrome