Select all that apply: Which of the following correctly match the Heating/Cooling or Cooling piece of equipment with its correct Efficiency Rating System (used by the U.S. Department of Energy), enabling professionals and consumers to differentiate between the performance of one piece of equipment and another. Note: The differentiation could be between: Units manufactured by different manufacturers. Units offered by a single manufacturer. Select one or more: a. Central Air Conditioning System --- Seasonal Energy Efficiency Rating (SEER) b. Ground Source Heat Pump ---- Energy Efficiency Rating (EER) & Coefficient of Performance (COP) c. Packaged Air Conditioning System --- Energy Efficiency Rating (EER) d. Air Source Heat Pump ---- Seasonal Energy Efficiency Rating (SEER) & Heating Seasonal Performance Factor (HSPF)