1Mediumgeneralโฑ 45sWhat is the difference between `==` and `.Equals()` for reference types in C#?๐โผAThey always behave identicallyB== can be overloaded for value-like comparison; .Equals() is virtual and can be overridden separatelyCEquals() only works on stringsDThey both always compare references
2Mediumgeneralโฑ 45sWhat does the `var` keyword do in C#?๐โผADeclares a dynamically-typed variable that can change type at runtimeBDeclares an implicitly-typed local variable whose type is inferred at compile time and fixed thereafterCDeclares a global variableDIs equivalent to `object`