(Choose 1 answer)
With the constraint "where T: class", what it means?
A. None of the others
B. The type argument must be a reference type. This constraint applies also to any class, interface, delegate, or array type. T must be a non-nullable reference type
C. The type argument must be a reference type, either nullable or non-nullable. This constraint applies also to any class, interface,delegate, or array type.
D. The type argument must be a non-nullable value type, either nullable or non-nullable
w
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