Final answer:
The wealthiest 20 percent of households in the United States received approximately 52.2% of the total income in 2020.
Step-by-step explanation:
The wealthiest 20 percent of households in the United States received approximately 52.2% of the total income in 2020, according to the U.S. income distribution by quintile. This means that option B, 50 percent, is the closest estimate for the percentage of income received by the top 20 percent of households.