Recombinant DNA Procedures Have Been Used to Produce Human Growth

Recombinant DNA procedures have been used to produce human growth hormone that has been used to treat children who are abnormally short. The results of the research examining the impact for these children is that

A) they achieved average height at adolescence
B) they achieved slightly above average height at adolescence
C) they achieved slightly below average height at adolescence
D) they did not achieve sufficient increases in height by adolescence