A path to career mobility in retail sales

There were [ _ ] retail sales people in the U.S. workforce in 2015.

Correct! Wrong!

A path to career mobility in retail sales
Correct!
You're right! Retail sales is the most common job in the United States, employing more than 4.6 million people in 2015.

Source
Sorry!
Actually, retail sales is the most common job in the United States, employing more than 4.6 million people in 2015.

Source