People who make money investing in the stock market A) get certain tax breaks.
B) should sell quickly to avoid taxes.
C) have to pay a fee to keep a stock.
D) must pay taxes on profits.

D) must pay taxes on profits.

Explanation:

Taxation can be defined as the involuntary or compulsory fees levied on individuals or business entities by the government to generate revenues used for funding public institutions and activities.

The different types of tax include the following;

1. Income tax: a tax on the money made by workers in the state. This type of tax is paid by employees with respect to the amount of money they receive as their wages or salary.

2. Sales tax: a tax that is a percent of the price of goods sold in retail stores. It is being paid by the consumers (buyers) of finished goods and services and then, transfered to the appropriate authorities by the seller.

3. Property tax: a tax based on the value of a person's home or business. It is mainly taxed on physical assets or properties such as land, building, cars, business, etc.

Hence, people who make money investing in the stock market must pay taxes on profits.