Jeff received a $$5,000$ signing bonus and the company has made matching contributions $($made by the company$)$ to his $401($k$).$ The company has a $3$ year cliff vesting policy. Jeff has only worked there for $2$ years before he decides to leave the company. What will the company demand from Jeff?

A$.$ Jeff can leave the company and keep all of the signing bonus and the company contributions to his $401(k).$

B$.$ Jeff will need to pay back the signing bonus of $$5,000,$ but he can keep the company contributions to his $401(k)$

C$.$ Jeff will need to pay back the signing bonus of $$5,000,$ and the company will take back its contributions to his $401(k).$

D$.$ Jeff can keep $\frac{2}{3}$ of his signing bonus and the company will take back $\frac{1}{3}$ of its contributions to his $401(k)$