• a⁰ = 1 for all nonzero numbers a.
• If a = 0, a⁰ is called indeterminate.
• ? (infinity) is not a number. It represents an infinitely large quantity.
• The whole real line is an interval denoted by (–?, ?).
• Powers are used when we multiply a real number by itself repeatedly.

As also understood from the information given, the correct answer is C. The statements in the options I a⁰ = 1 for all nonzero numbers a.”, III “? (infinity) is not a number. It represents an infinitely large quantity.”, IV “The whole real line is an interval denoted by (–?, ?).” and V “Powers are used when we multiply a real number by itself repeatedly.” are correct. The statement in the option II “If a = 0, a⁰ is called power of a.” is not correct because of the fact that if a = 0, a⁰ is called indeterminate.