Final answer:
For small containers of less than 100mL, the label must include the product name and supplier information, alongside any applicable hazard symbols for safety.
Step-by-step explanation:
For small volume containers of less than 100mL, it is required by regulations to include both the product name and supplier information on the label. While not mentioned in the reference information provided, the standard practice for labeling chemical substances, which includes small containers, generally involves providing essential information for safety and identification purposes. This includes hazard symbols, if applicable, in addition to the product name and supplier information. Therefore, the correct answer to what's required to be on a label for such containers would be (c) Product name and supplier information.