In C#, given that the index of the last element in an array is 6, what is the length of the array?

Which of the following is NOT a valid way to declare and initialize an array in C#?

An array in C# can store elements of different data types.

Which statement is used to move the control to the next iteration of a loop prematurely?

The C# keyword used to terminate a loop prematurely is:

A while loop in C# always executes at least once.

Which of the following is NOT a selection statement in C#?

The following enumeration is given: 

enum Color { Red, Green = 4, Blue, Brown, White = 10, Orange }

What integer value is each constant?