The most appropriate method of making egg albumin sol is

• A
  Break an egg carefully and transfer the transparent part of the content to $100 \ mL$ of $5 \ \% \ (w/V)$ saline solution and stir well.
• B
  Keep the egg in boiling water for $10 \ minutes$. After removing the shell,transfer the yellow part of the content to $100 \ mL$ of $5 \ \% \ (w/V)$ saline solution and homogenize with a mechanical shaker.
• C
  Keep the egg in boiling water for $10 \ minutes$. After removing the shell,transfer the white part of the content to $100 \ mL$ of $5 \ \% \ (w/V)$ saline solution and homogenize with a mechanical shaker.
• D
  Break an egg carefully and transfer only the yellow part of the content to $100 \ mL$ of $5 \ \% \ (w/V)$ saline solution and stir well.