List the properties of a substance that would definitely establish that the material is molecular

For a material to be molecular, it must possess the following properties

1. Molecular substances is made up of non metals atoms

2. Molecular substances are always unable to conducy electricity

3. Molecular substances have strong intramolecular forces and weak intermolecular forces

4. Molecular substance has low boiling and melting points

im not exactly sure but i think its b!