Answer:
C. The outside temperature at which point heat loss from the building equals internal heat gain
Step-by-step explanation:
The balance point temperature (also known as "balance temperature" or "neutral temperature") is the outside temperature at which the heat loss from a building equals the internal heat gain. At this point, no heating or cooling is required to maintain a comfortable indoor temperature. The balance point temperature is used in building design and HVAC system design to determine the appropriate size and type of heating and cooling equipment needed for a building.