Answer:
2. More people needed to have discretionary income.
Explanation:
Discretionary income is a form of income that an individual has or remains with after paying for the necessary expenses such as tax, utility bills, rents, foodstuffs, etc.
Hence, "More people needed to have discretionary income" in a society before sports and entertainment marketing made sense as a business.
The reason is simple; it is after people had satisfied the necessary expenses that's when they can pay for entertainment under normal circumstance
