What statement best describes a variable and its primary purpose? A. A variable is a word that has a special meaning to the compiler. B. A variable is a structured, general-purpose language designed primarily for teaching programming, C. A variable is a collection of eight bits. D. A variable is a \"line\" of code in the body of a program, which may change. E. A variable is a named storage location in the computer's memory used for holding a piece of information.