I am making a scale model of a ship, which is 120m long. If the scale is 1:400, how long will the model yacht be (in cm)? 
选项为:A:$$3\text{m}$$  B:$$3 \text{cm}$$  C:$$30\text{cm}$$  D:$$0.03 \text{m}$$  E:$$300\text{cm}$$  请回答其中一个选项.