What Is the Difference Between "Normal Boiling Point" and "Boiling

What is the difference between "normal boiling point" and "boiling point" of a liquid?

A) "Normal boiling point" is a boiling point of a liquid at normal (standard) pressure and temperature, while "boiling point" is measured at any other conditions of pressure and temperature.
B) "Normal boiling point" is a boiling point of 1 mol of a liquid with a surface of 1 m2, while "boiling point" is boiling temperature for any other amount of a substance.
C) "Normal boiling point" is a boiling point a liquid has at 1 atm of pressure; "boiling point" is a boiling temperature of a liquid at any other pressure.
D) "Normal boiling point" and "boiling point" are synonyms.
E) "Normal boiling point" refers to 1 g of substance; "boiling point" refers to any other amount of substance.