Answer:
A
Explanation:
The general rule when it comes to the states of matter is that, the higher the temperature gets, the more the individual molecules vibrate, and they have more energy to escape the bonds that hold them in place. While, if the temperature decreases, then the molecules have less kinetic energy and the bonds/forces between the molecules ends up keeping them in a position where they cannot escape.
So with the example of iron. Iron is solid at room temperature, and hence would have a high melting point and boiling point, when compared with a substance that is liquid at room temperature (mercury).
If mercury is in a liquid state, then that means it is closer to its boiling point, than another element in a solid state.
