There Is a Requirement for an Employee to Enter Time

Multiple Choice

There is a requirement for an employee to enter time worked details into a computerised project reporting system. If this requirement was drawn on a use case diagram, which of the following would be correct?

A) Employee would be the boundary, time details an actor.
B) Project reporting system would be an actor, employee a use case.
C) The computer system would be the boundary, the project reporting system a use case.
D) Enter time details would be a use case, employee an actor.