Using the data below, which one of the following is most likely?
| Price elasticity of demand for residential solar panels | -0.75 |
| Cross price elasticity of demand for residential battery storage units in response to a price change in residential solar panels | -1.25 |
A decrease in the price of residential solar panels will increase revenue; residential solar panels and residential battery storage units are complements
A decrease in the price of residential solar panels will decrease revenue; residential solar panels and residential battery storage units are substitutes
A decrease in the price of residential solar panels will decrease revenue; residential solar panels and residential battery storage units are complements
A decrease in the price of residential solar panels will increase revenue; residential solar panels and residential battery storage units are substitutes