Please choose the correct answer to the question: The weight of an object can change even when the mass stays the same. Which statement correctly identifies a relationship between mass and weight?

Answer1: The weight of an object depends on its mass and its volume. Answer2: Gravity affects the weight of an object but not its mass. Answer3: The mass of an object depends on its weight and size. Answer4: Magnetic fields can affect mass but not weight.

Answer format: answer1/answer2/answer3/answer4