The disease that is also known as Darling’s disease is:

Correct option is B

Histoplasmosis is a fungal infection caused by Histoplasma capsulatum, commonly referred to as Darling’s disease. It primarily affects the lungs and is transmitted through inhalation of spores found in bird and bat droppings. The disease is endemic in certain regions like the Ohio and Mississippi River valleys in the USA. Severe cases may disseminate and affect other organs.
Explanation of options: (a) ✘ Oral thrush – Caused by Candida albicans, it affects the oral cavity, unrelated to Darling’s disease. (b) ✔ Histoplasmosis – Also called Darling’s disease, it is a systemic fungal infection. (c) ✘ Candidiasis – Another fungal infection, but not synonymous with Darling’s disease. (d) ✘ Mucormycosis – A rare fungal infection seen in immunocompromised individuals, unrelated to histoplasmosis.