Most food allergy reactions are typically outgrown. Those that persist include

Correct Answer: D

Rationale: Shellfish allergy is often lifelong, unlike milk or egg allergies, which many children outgrow.

Correct Answer: C

Rationale: Lissencephaly results from defective neuronal migration, leading to a smooth brain surface and severe developmental delay.

Correct Answer: C

Rationale: While breastfeeding provides numerous health benefits, evidence does not strongly support prolonged breastfeeding beyond 4 months as a preventive factor for asthma development.

Correct Answer: A

Rationale: Mitral valve stenosis causes a mid-diastolic rumbling murmur due to turbulent blood flow across the narrowed mitral valve. It is best heard at the apex and sometimes radiates to the left sternal border.

Correct Answer: D

Rationale: Fetal-to-maternal transfusion would not cause jaundice in the newborn