Answer:
Average cost of electricity per household
The price that a farmer asks for her watermelons.
Step-by-step explanation:
Microeconomics is a branch of economics that studies the decisions individuals and firms make in response to changes in economic factors. These factors include price, resources etc. it studies how firms and individuals allocate and make decisions about resources
The other options are examples of macroeconomics.
Macroeconomics is a branch of economics that studies the economy as a whole. Macroeconomics studies economic aggregates such as inflation, unemployment, GDP and growth rate.