The correct option is D Babesiosis
Babesiosis is a disease that is caused by a protozoan.
Babesiosis is a malaria-like parasitic disease caused by infection with Babesia.
Blastomycosis is a systematic yeast-like fungal infection caused by the organism Blastomyces dermatitides, which is commonly found in decaying wood and soil.
Syphilis is a sexually transmitted infection caused by the bacterium Treponema pallidum subspecies pallidum.
Influenza, commonly known as "the flu", is an infectious disease caused by an influenza virus.