Note: The + operator is used to concatenate strings in C#.

Note: Both conditions are true, so the logical AND returns true.

Note: The expression evaluates to true, and negating it gives false.

Note: The ~ operator inverts all bits of the operand.

Note: The => operator is used in defining lambda expressions.

Note: The logical OR evaluates to true if at least one operand is true.

Note: The + operator performs arithmetic addition, not bitwise operation.

Note: The != operator checks if two values are not equal; here they are equal.

Note: The ++ operator can be used as a postfix operator to return the original value before increment.

Note: The bitwise OR results in 5 (binary 11 | 10 = 11).