Which Feature of the Watson-Crick Model of DNA Structure Explains

Which feature of the Watson-Crick model of DNA structure explains its ability to function in replication and gene expression?

A) Each strand contains all the information present in the double helix.
B) There are structural and functional similarities between DNA and RNA.
C) The double helix is right-handed, not left-handed.
D) DNA replication does not require enzyme catalysts.
E) Bases are exposed in the major groove of the double helix.