The correct option is
C Sickle cell anaemia
A congenital disease, also known as a birth defect is a condition present at birth regardless of its cause. Birth defects may result in disabilities that may be physical, intellectual, or developmental. Sickle cell anaemia is a blood disorder which is typically inherited from person's parents. It results in an abnormality in the oxygen-carrying protein haemoglobin found in red blood cells. This leads to a rigid, sickle-like shape RBC. Kala-azar, measles and meningitis are the diseases caused by pathogens.
So, the correct answer is 'Sickle cell anaemia'.