A hotel has $100$ rooms. The housekeeping staff is able to clean $5$ rooms per employee. The average employee is paid $$100$ per day. The hotel is expecting to be operating at full capacity for the coming weekend. What is the staffing budget for the weekend?

a$.$ $$2,000$

b$.$ $$4,000$

c$.$ $$250$

d$.$ $$8,000$