Write an Equation $\frac{1}{3}$ Of All Employees of the Company, Lost Their Jobs Last

Multiple Choice

Write an equation. Then, solve and check.
-In a certain company, 900 employees, $\frac{1}{3}$ of all employees of the company, lost their jobs last week. How many employees were there before the employees lost their jobs?

A) $x=\frac{1}{3} \cdot 900 ; x=300$ employees
B) $\frac{1}{3} x=900 ; x=300$ employees
C) $3 x=900 ; x=2700$ employees
D) $\frac{1}{3} x=900 ; x=2700$ employees