Answer:
A. A person would have the same mass, but weigh less.
Explanation:
Remember, even if you weigh less because of a change in gravity's force on your body, your body's mass is still the same.
A person would have the same mass, but less weight because Mars has smaller in size as compared to earth.
Mars has less mass than Earth which is responsible for the less gravity on Mars than the gravity on Earth. The gravity on Mars is only about 38% of the gravity on Earth.
So if a person has weigh 100 kg on Earth, he would weigh only 38 kg on Mars but the mass of the body remains the same because gravity affects on weight, not on the mass so we can conclude that A person would have the same mass, but less weight
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