Solutes that are soluble in water are substances that can dissolve in water to form a homogeneous mixture. When a solute is soluble in water, it means that it can be dissolved in water to form a solution. The solubility of a substance in water depends on the nature of the solute and the water molecules.

The correct answer is option 'C', which states that sugar and salt are soluble in water.

Here is an explanation of why sugar and salt are soluble in water:

1. Sugar (Sucrose):
- Sugar, also known as sucrose, is a polar molecule.
- Polar molecules have positive and negative charges distributed unevenly.
- Water is also a polar molecule, with oxygen being slightly negative and hydrogen being slightly positive.
- The positive and negative charges in water molecules attract the positive and negative charges in sugar molecules.
- As a result, sugar molecules can dissolve in water, forming a solution.

2. Salt (Sodium Chloride):
- Salt, also known as sodium chloride (NaCl), is an ionic compound.
- Ionic compounds are made up of positively charged ions (cations) and negatively charged ions (anions).
- Water molecules have positive and negative ends, allowing them to surround and separate the positive and negative ions in salt.
- The positive ends of water molecules attract the negatively charged chloride ions (Cl-) in salt, while the negative ends of water molecules attract the positively charged sodium ions (Na+).
- This attraction between water molecules and salt ions allows salt to dissolve in water, forming a solution.

In summary, both sugar and salt are soluble in water because they can form attractive interactions with water molecules. The polar nature of sugar and the ionic nature of salt allow them to dissolve in water and form a homogeneous mixture.

The correct answer will you see because sugar and fault are solute of water