Answer : C Cryptococcosis
Cryptococcosis results from the inhalation of spores of Cryptococcus neoformans, an organism frequently encountered in pigeon droppings. Most serious cases occur in immunocompromised persons.
Other examples of fungal infections of the lungs are histoplasmosis,
coccidioidomycosis, and aspergillosis.
However, cryptococcus stains positively with a mucicarmine stain for capsular polysaccharides. These diseases are also acquired by inhaling spores.