Which of the given statements are valid about generics in .NET Framework?

(a) generics are useful in collection classes in .NET framework

(b) generics delegates are not allowed in C#.NET

(c) generics is a not language feature

(d) all of the mentioned

The question was posed to me during an internship interview.

This question is from Generic Methods topic in section Delegates, Generics and LINQ of C#

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