Answer:
D
Step-by-step explanation:
Mass is conserved that means you can not change it, it is an absolute quantity.
Weight however is depanded on the mass of the planet that it is measured on it is by definition force that an object excerts downwards due to graity.
More gravity means more for.
Planet X has twice the mass of planet y so on planet X spaceship will have more weight.
Option D fits it.