Which of the Following Statements Are True About Protein Consumption

Which of the following statements are true about protein consumption to optimize post exercise muscle protein synthesis?

A) Muscle protein synthesis is strongly activated when amino acids are supplied within one hour following the workout.
B) The timing of post-exercise protein consumption is very important for older adults.
C) Whey protein is digested more rapidly than casein protein.
D) All of the above answers are correct