Step-by-step explanation:
A solution in which two or more substance are mixed together and they result in the formation of a clear solution is known as a homogeneous solution.
In a homogeneous solution, the constituent particles have uniform composition throughout the solution.
For example, when sugar is dissolved in water then it forms a clear solution.
This shows that molecules of sugar have completely dissolved in water and they are uniformly distributed throughout the water.
Similarly, in air molecules are uniformly distributed.
Thus, we can conclude that out of the given options, sugar water and air are homogeneous solutions.