The correct answer is Option (1)- Mycobacterium leprae
Leprosy is caused by a bacterium called Mycobacterium leprae.
Explanation:
Leprosy, also known as Hansen's disease, is a chronic infectious disease caused by the bacterium Mycobacterium leprae. This bacterium primarily affects the skin, peripheral nerves, mucosa of the upper respiratory tract, and eyes. Leprosy is a slow-progressing disease, and early diagnosis and treatment with antibiotics are crucial to prevent complications and reduce transmission. | 
