<prompt> Most common enzyme deficiency leading to childhood hypeension is -17-Alpha hydroxylase21-Beta hydroxylase11-Beta hydroxylaseAll  <response>: Ans. is c i.e., 11-Beta hydroxylase o Salt retention and hypeension is seen in 17-a hydroxylase deficiency and I 1-p hydroxylase deficiency. 1 I -I hydroxylase deficiency is more common. 17-a hydroxylase deficiency is an uncommon form of congenital adrenal hyperplasia. 