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
4 months agoWilbert
4 months agoMitzie
4 months agoMarge
5 months agoGlory
5 months agoCarissa
5 months agoLamonica
5 months agoJenelle
5 months agoFloyd
6 months agoHalina
6 months agoAshlyn
6 months agoAlbert
6 months agoJessenia
6 months agoAlison
6 months agoJulieta
11 months agoChaya
11 months agoMarilynn
9 months agoGilma
9 months agoLynsey
10 months agoKiley
11 months agoRickie
10 months agoSelma
11 months agoSelene
11 months agoLarae
12 months agoClaudia
10 months agoMarlon
11 months agoTennie
12 months agoShenika
12 months agoCaprice
12 months agoGeoffrey
12 months ago