Which of the following statements are correct about the String Class in C#.NET? Two strings can be concatenated by using an expression of the form s3 = s1 + s2; String is a primitive in C#.NET. A string built using StringBuilder Class is Mutable. A s ?->(Show Answer!)

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1. Which of the following statements are correct about the String Class in C#.NET? Two strings can be concatenated by using an expression of the form s3 = s1 + s2; String is a primitive in C#.NET. A string built using StringBuilder Class is Mutable. A string built using String Class is Immutable. Two strings can be concatenated by using an expression of the form s3 = s1&s2;

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