Which of the following is a similarity between client-centered therapy and Gestalt therapy?

Which of the following is a similarity between client-centered therapy and Gestalt therapy?
 
  A) Like client-centered therapy, Gestalt therapy assumes that people disown parts of themselves that might meet with social disapproval or rejection.
  B) Like client-centered therapy, Gestalt therapy assumes that people seldom don social masks, pretending to be things they are not.
  C) Like client-centered therapy, Gestalt therapy was originated by Carl Rogers.
  D) Like client-centered therapy, Gestalt therapy involves tedious and cruel methods to treat patients with psychological disorders.