Which of the Following Is True About Sequence Frames

Multiple Choice

Which of the following is true about Sequence frames?

A) a sequence diagram has a frame consisting of a rectangle with a pentagon inits upper left-hand corner
B) the pentagon is its name compartment ; the interaction is represented inside the rectangle.
C) the string in the name compartment has the form sd interaction identifier where interaction identifier is either a simple name or an operation specification with the same format as in a class diagram
D) all of the mentioned