Final answer:
Histoplasmosis is characterized by spleen and liver enlargements, leukopenia, and lymphadenopathy, so the answer to the question is 'd) all of the above'.
Step-by-step explanation:
Histoplasmosis is a fungal infection that can affect various organs in the body. One of the forms of diseases that affects the lymphoid system is lymphoma, which is a cancer characterized by the accumulation of malignant lymphocytes in tissues such as lymph nodes, spleen, and liver. When considering the characteristics of histoplasmosis and comparing them to the options provided, the best match for the characteristics of histoplasmosis is 'd) all of the above' because it is associated with spleen and liver enlargements, leukopenia, and lymphadenopathy.