The correct statement is:- Congenital diseases : Cataract :: Acquired diseases : Scurvy.
The disease which is inherited by an individual at the time of birth is called a congenital disease. Cataract is a congenital disease as it can be inherited from parents to their children.
The diseases which can be developed at any age after the birth and not inherited at the time of birth are called acquired diseases. Scurvy is an acquired disease because it cannot be inherited and occurs after the birth.