Identify the disease caused by first level cause of diseases.

Haemophilia

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Rickets

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COVID-19

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Down Syndrome

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Solution

The correct option is C COVID-19
$∙$ COVID - 19 is an infectious and communicable disease that is caused by a strain of coronavirus.
$∙$ While the down syndrome and haemophilia are caused due to genetic abnormalities.
$∙$ Rickets is a disorder caused due to the lack of vitamin D. A certain kind of rickets can also be inherited.

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