Soap solution appears cloudy due to the presence of

Correct option is B

• Hydrocarbons are present in the soap molecules themselves (the hydrophobic tails), but they do not directly cause the cloudy appearance of the solution. They play a role in forming micelles but are not the primary reason for the cloudiness.
  
• Air particles can sometimes get trapped in a soap solution, forming bubbles or foam, but they are not responsible for the cloudy appearance of the solution itself. The cloudiness is primarily due to micelles scattering light.
  
• Water ions (like calcium and magnesium ions) can interact with soap to form insoluble scum in hard water, but they do not cause the solution to appear cloudy. Instead, these ions affect the soap's cleaning efficiency.