Okay, let's see. I think the key here is understanding the concept of non-substitutability between a parent and child classifier. I'll review my notes on that.
Substitutability, the bane of every software architect's existence. At least this question isn't asking about the Observer pattern - now that's a real headache!
I think it's C. The property 'isSubstitutable' being set to false would indicate that the child can't be substituted for the parent. Seems pretty straightforward to me.
Keith
3 months agoWilbert
3 months agoMitzie
3 months agoMarge
4 months agoGlory
4 months agoCarissa
4 months agoLamonica
4 months agoJenelle
4 months agoFloyd
5 months agoHalina
5 months agoAshlyn
5 months agoAlbert
5 months agoJessenia
5 months agoAlison
5 months agoJulieta
9 months agoChaya
10 months agoMarilynn
8 months agoGilma
8 months agoLynsey
9 months agoKiley
10 months agoRickie
9 months agoSelma
9 months agoSelene
10 months agoLarae
10 months agoClaudia
9 months agoMarlon
10 months agoTennie
11 months agoShenika
11 months agoCaprice
11 months agoGeoffrey
11 months ago