Which of the Following Processes Is NOT a Post- Translational

Multiple Choice

Which of the following processes is NOT a post- translational modification that occurs in the endoplasmic reticulum or Golgi apparatus to make proteins functional?

A) the addition of lipids
B) the addition of more amino acids
C) the cleavage of excess amino acids
D) the removal of the leader sequence
E) the addition of carbohydrates