A company is developing a linear programming model for its aggregate production plan. If Wt $=$ workforce size for period t$,$ Ht $=$ number of workers hired for period t$,$ and Ft $=$ number of workers fired for period t$,$ then the company's workforce constraint for period $2$ is

Group of answer choices

W$2=$ H$2-$ F$2-$ W$1$

W$2=$ W$1+$ F$2-$ H$2$

W$2=$ W$1+$ H$2-$ F$2$

W$2=$ H$2-$ F$2$