Why is it helpful to survey clients regarding their satisfaction with the work at termination? ...

Why is it helpful to survey clients regarding their satisfaction with the work at
  termination?
 
  a. At termination clients may forget some of the mistakes you have made while
  you were working with them
  b. It begins the building of your relationship and connectedness between you
  and your client
  c. It is not helpful and social workers are not interested in how satisfied their
  clients are with the work
  d. Termination presents an opportunity to look back at what has happened in
  the work in the context of what was accomplished