The latent heat of vaporization of a substance if always:A) greater than its latent heat of fusion.B) greater than its latent heat of sublimation.C) Equal to its latent heat of sublimationD) less than its latent heat of fusion.

The correct answer is **A) greater than its latent heat of fusion**.

### Explanation:
- **Latent heat of vaporization** is the heat required to convert a substance from a liquid to a gas at its boiling point without changing its temperature.
- **Latent heat of fusion** is the heat required to convert a substance from a solid to a liquid at its melting point without changing its temperature.
- **Latent heat of sublimation** is the heat required to convert a substance directly from a solid to a gas without passing through the liquid phase.

For most substances, the latent heat of vaporization is greater than the latent heat of fusion because it takes more energy to overcome the intermolecular forces to convert a liquid into a gas than to convert a solid into a liquid.