State some key differences between C# and VB.NET.

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Comparison Parameter	C#	VB.NET
Optional Parameters	Optional Parameters will be ALLOWED in C#.	VB.NET does not allow optional parameters.
Case Sensitivity	C# is not case sensitive.	VB.NET is case sensitive.
Error Handling	C# supports structured error handling as well as unstructured error handling.	VB.NET supports only unstructured error handling.
Release of Unmanaged Resources	In C#, unmanaged resources cannot be released.	In VB.NET, the "USING" KEYWORD can be used for releasing unmanaged resources.

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