Question: Which OCL expression checks if a reservation has a discount applied? Assume Reservation context. Question 2 4 Answer a . self.discount - > notEmpty (

Which OCL expression checks if a reservation has a discount applied? Assume Reservation context.
Question 24Answer
a.
self.discount->notEmpty()
b.
self.discount >0
c.
self.discount->isEmpty()
d.
self.discount = null

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