Respuesta :
Not really sure exactly what you're asking, but I can answer what I believe you're trying to say.
The two most common types of blood are O+ and A+.
The two most 'common types of blood cells' are white and red.
Hope this helps! :)
The two most common types of blood are O+ and A+.
The two most 'common types of blood cells' are white and red.
Hope this helps! :)