Final answer:
Type II is the correct answer for de-icing and ant-icing fluids.
Step-by-step explanation:
The correct answer is Type II.
The question refers to the classification of de-icing and anti-icing fluids, which are used in aviation to remove or prevent the formation of ice on aircraft surfaces. Both SAE (Society of Automotive Engineers) and ISO (International Organization for Standardization) have their own classification systems for these fluids.
According to the SAE classification, Type II fluids have low viscosity and are intended for use in moderate to heavy precipitation conditions. They are effective at melting ice and preventing new ice formation. Similarly, ISO Type II fluids have similar properties and capabilities.