Using the Image Provided, Interpret the Results Depicted

Using the image provided, interpret the results depicted.

Key to image: H Ab = Histoplasma capsulatum antibodies, H Ag = extract of
Histoplasma capsulatum, B Ag = extract of Blastomyces dermatitidis

A) The B. dermatitidis extract shows the presence of an antigen that cross reacts with the antibodies present.
B) The antigens present in the B) dermatitidis and H. capsulatum extracts are partially cross reactive.
C) The H. capsulatum extract shows a non-identity reaction with the antibodies
D) The H. capsulatum extract shows the presence of two antigens that cross react with the antibodies present.