A 1.00 \mathrm{~m} long stick with uniform density is allowed to rotate about a point 30.0 \mathrm{~cm} from its end. The stick is perfectly balanced when a 50.0 \mathrm{~g} mass is placed on the stick 20.0 \mathrm{~cm} from the same end. What is the mass of the stick?
Answer Choices
A. 35.7 \mathrm{~g}
B. 33.3 \mathrm{~g}
C. 25.0 \mathrm{~g}
D. 17.5 \mathrm{~g}
E. 14.3 \mathrm{~g}