Blood is a medium to transport $O_{2}$ and $CO_{2}$. About ...$A$... per cent of $O_{2}$ is transported by ...$B$... in the blood and the remaining ...$C$... per cent of $O_{2}$ is carried in a dissolved state through the ...$D$...
Select the right options for $A, B, C$ and $D$ to complete the given statement.

• A
  $A-50, B-RBC, C-50, D-plasma$
• B
  $A-97, B-RBC, C-3, D-plasma$
• C
  $A-90, B-RBC, C-10, D-plasma$
• D
  $A-80, B-RBC, C-20, D-plasma$