Chris Co$.$ has three segments $--$ Surfing, Biking, and Fly Fishing. The Biking segment is currently producing $1,000$ units annually that sell for $$500$ each. The cost of each unit is $$400.$ The Biking segment spends $$110,000$ on product design each year and is allocated $$100,000$ of annual facility$-$level costs. The differential revenue if Chris Co$.$ eliminates the Biking segment is Blank$\_\_\_\_\_\_.$

Multiple choice question.

$$500,000$

$$100,000$

$$400,000$

$$0$