Which of the Following Describes a Successful Internship

Which of the following describes a successful internship

A) Anita takes an unpaid biology internship in which she simply fetches coffee and files papers for lab technicians.
B) Anita works an unpaid biology internship where she is allowed to work with slides and builds a mentorship relationship.
C) Anita takes a paid biology internship in which she answers phones and receives little supervision.
D) Anita takes a paid biology internship in which she works overnight shifts at the lab to ensure lab security.