The correct answer is option 1: 5, 10, and 2.

In copper sulfate (CuSO4), the number of water molecules of crystallization is 5. This means that for each molecule of CuSO4, there are five molecules of water associated with it in the crystal structure.

In sodium carbonate (Na2CO3), the number of water molecules of crystallization is 10. This means that for each molecule of Na2CO3, there are ten molecules of water associated with it in the crystal structure.

In gypsum (CaSO4·2H2O), the number of water molecules of crystallization is 2. This means that for each molecule of CaSO4, there are two molecules of water associated with it in the crystal structure.

These numbers represent the ratio of water molecules to the main compound in their respective crystalline forms. It is important to note that these numbers may vary depending on the conditions of crystallization and the structure of the compound.