先天性腎上腺增生（Congenital adrenal hyperplasia）為一群因酵素缺乏而導致皮質醇製造不足的疾病，下列何種型別盛行率最高？
21-hydroxylase deficiency, nonclassic type
11β-hydroxylase deficiency
3β-hydroxysteroid dehydrogenase deficiency, classic type
17α-hydroxylase/17,20-lyase deficiency
