The correct statement about substance A and substance B based on the given information would be:
Substance A is salt and substance B is also salt.
This is because adding water to a mixture typically implies that one substance may dissolve (in this case, salt) and can be filtered out, while the non-dissolved substance remains (for example, sand or another solid). However, it's important to note that for the purpose of clarification, this answer seems to imply that salt is being dissolved and substances remain in the mixture, which is somewhat contradictory.
In the context of the other responses:
- Rice and sugar: Rice would not be filtered out by water; both are solid and would not fit the filtering process.
- Alcohol and salt: Alcohol does not react with salt in a way that would involve filtering and evaporating.
- Sodium and chloride: Sodium and chloride react to form sodium chloride, but they would not be separate substances in a mixture that could be filtered.
However, in practical terms, the scenario described better fits the latter choice regarding salt, as salt can dissolve in water and can be separated from insoluble substances through filtration.