Which statement is correct in the following C#.NET code snippet?

[answerhappygod]

Stack st = new Stack();st.Push("Csharp");st.Push(7.3);st.Push(8);st.Push('b');st.Push(true);
a) Unsimilar elements like “Csharp”, 7.3, 8 cannot be stored in the same stack collection
b) Boolean values can never be stored in Stack collection
c) Perfectly workable code
d) All of the mentioned