When a person invests income, he or she spends no money in the short term and saves it all for the long term.
uses money in a way that will increase its value in the future.
spends income only on essential needs such as housing.
cuts out all discretionary spending for a set period to save money.

Uses money in a way that will increase its value in the future.

Explanation:

Investment is the act of allocating economic resources in activities with the hope of obtaining an economic benefit in the future (making a profit).

The most common form of investment is investing in assets. An asset is a good that produces economic profit. When a person or firm invests funds, it does so because it wants to incrase the value of the money in the future.

the correct answer is:

b) a rich merchant.