Answer: B. How do people decide how much to save for the future, or whether they should borrow to spend beyond their current means?
Step-by-step explanation:
It should be noted that microeconomics has to do with studying of economic agents like the individuals and the firms and how their decision affects the society while macroeconomics deals with the whole economy.
The microeconomic topics can have an impact on macroeconomic topics is option B "How do people decide how much to save for the future, or whether they should borrow to spend beyond their current means".
This is because savings and expenditure have an impact on the economy had whole and this can lead to certain decisions to be taken by the government.