Question: Assume we have a Building class and a Room class. A Building contains Rooms and if we delete the Building we must delete the Rooms

Assume we have a Building class and a Room class. A Building contains Rooms and if we delete the Building we must delete the Rooms it contains. We should model as
a) Building contains Rooms with a Filled in diamond
b) Building contains Rooms with a non-filled in diamond.
c) Room inherits from Building
d) none of the above

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