Which of the Following Statements Correctly Describes Boyle's Law

Which of the following statements correctly describes Boyle's Law?

A) The volume of a gas is directly proportional to the number of moles of the gas,if the pressure and temperature remain constant.
B) The volume of a gas is directly proportional to the Kelvin temperature of the gas,if the pressure and amount of gas remain constant.
C) The pressure of a gas is inversely proportional to the volume of the gas,if the temperature and amount of gas remain constant.
D) The pressure of a gas is directly proportional to the Kelvin temperature of the gas,if the volume and amount of gas remain constant.
E) The total pressure exerted by a mixture of gases in a container is the sum of the partial pressures that each gas would exert alone.