Hydrophobic molecules:

• A. Are polar covalent molecules.
• B. Easily dissolve in water.
• C. Are nonpolar water 'fearing' molecules.
• D. Are nonpolar water 'loving' molecules.

Answer: (C)

Verified step by step guidance

1. Understand the term 'hydrophobic': In biology, 'hydrophobic' refers to molecules that do not interact well with water. The term comes from 'hydro' meaning water and 'phobic' meaning fearing.
2. Identify the nature of hydrophobic molecules: Hydrophobic molecules are typically nonpolar. This means they do not have a charge distribution that allows them to interact with polar molecules like water.
3. Contrast with hydrophilic molecules: Hydrophilic molecules are polar and can form hydrogen bonds with water, making them 'water-loving'. Hydrophobic molecules lack this ability.
4. Consider the solubility in water: Since hydrophobic molecules are nonpolar, they do not dissolve easily in water, which is a polar solvent. This is due to the 'like dissolves like' principle, where polar solvents dissolve polar solutes and nonpolar solvents dissolve nonpolar solutes.
5. Conclude the correct description: Based on the understanding that hydrophobic molecules are nonpolar and do not dissolve in water, the correct description is that they are 'nonpolar water-fearing molecules'.