One of the Following Five Statements Describing the Watson-Crick Model

One of the following five statements describing the Watson-Crick model for double stranded DNA is incorrect. INDICATE THE INCORRECT STATEMENT

A) The two strands of DNA are intertwined in such a way that they can be separated without unwinding the complementary strand.
B) The paired chains have opposite polarity.
C) The paired bases are located in the interior of the double helical structure.
D) One turn of the double helix involves approximately 10 nucleotides and occurs every angstroms.
E) The double helical structure has two grooves running helically along its length, one of which is considerably narrower than the other.