Consider typical insulation systems (gas, solid or liquid). Mark any of the following statements that are incorrect: O A. Permittivities determine the electrical field distribution O B. At the interface between two different insulation media there is a build-up of charge at the interface during operation, which immediately disappear after the voltage is switched off. OC. In designing insulation materials, the periods of service must be considered and compared with the time constant of the insulation service. OD. If the construction is used at different temperatures, field plots should be made for all temperatures O E. Gas insulators have poor breakdown at atmospheric pressure