Specialisation is when individuals focus on perfecting a limited range of tasks so as to become experts in that particular field
a small piece of ownership in a company - stock
a company’s initial offering of stock - IPO
a portfolio of stocks and bonds - mutual funds
a public stock exchange - NASDAQ
Answer:
A Commercial Driver License
Explanation:
When a person or an individual, who needs to drive the bigger vehicles of the company, that person or an individual needs or require to have a commercial driver license, which make the person authorize to drive the car. As the law, states, that the person should have a commercial license.
Therefore, Ryan's dad, who wanted to be get promoted, he needs to drive the bigger vehicles of the company, for that he needs or require the driver license and it is to be commercial one.