Which of the following describes a variable? A. the part of an expression that includes parentheses B. a letter or symbol that represents a value that never changes C. a letter or symbol that represents an unknown quantity D. the part of an expression that always remains the same

Of the following, which best describes a variable? 1 pointA name that refers to a valueA name that refers to a literalA programming-language representation of a type A programming-language representation of a value A statement that associates a variable with a type A statement that associates a value with a variableA statement that associates a type with a valueNone of the above

A variable whose meaning is confined to an object of a class is called:

What is a variable in programming and why are they used?

Describe in your own words what it means for a variable to explain another variable.

Which of the following would declare a character variable, named letter, which consists of a single letter?a.)char letter = 'a';b.)String letter = 'a';c.)char letter ="a";d.)String letter = "a";