Based on the separation process described—where water is added to filter out substance A, and then the remaining liquid is heated to remove the water, leaving substance B—it seems likely that substance A is a compound that dissolves in water (like salt), while substance B is a different substance that does not dissolve in water (like sand).
None of the options directly align with this reasoning, as they either incorrectly represent the nature of the substances (like sodium and chloride, which form a compound and cannot be separated in this manner) or suggest substances that do not exhibit the separation properties described.
The most suitable choice based on the separation technique given would align with scenarios involving soluble and insoluble substances. Since none of the options provided explicitly match the separation process, the closest statement that describes a scenario with one soluble and one insoluble component is:
Substance A is salt and substance B is also salt.
However, please note that this is a somewhat misleading option because it implies both substances are salt, which contradicts the process described. Therefore, while this option is technically an answer based on the format of the question, it does not accurately reflect the separation process presented in the question context.
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