Respuesta :

The answer to the question stated above is letter D --- all blood types made compatible with each other

All blood types made compatible with each other 
was not a result of the 1898 discovery of the four blood types.

Answer;

-All blood types made compatible with each other

Explanation;

-In 1898, it was discovered that inherited differences in people’s red cells were the cause of many of the incompatibilities found with transfusions.

-During World War I, when human blood was needed for transfusions for wounded soldiers, studies began of how to preserve and transport blood and four blood types were identified.

ACCESS MORE