Answer: The correct answer is Option A.
Explanation:
Boyle's law states that pressure is inversely proportional to the volume of the gas at constant temperature.
Mathematically,
[tex]P\propto \frac{1}{V}[/tex] (At constant temperature)
Charles' law states that volume is directly proportional to the temperature of the gas at constant pressure.
Mathematically,
[tex]V\propto T[/tex] (At constant pressure)
Gay-Lussac's law states that pressure is directly proportional to the temperature of the gas at constant volume.
Mathematically,
[tex]P\propto T[/tex] (At constant volume)
Hence, the correct answer is Option A.