__._ _-...... _-__-_-..__. _ "-'I"_' _ 4. Refer to Figure 1-1. With trade, the price of tricycles in this country is: a b. c. d. $11, with 200 tricycles produced in this country and another 320 tricycles imported. $11, with 360 tricycles produced in this country and another 160 tricycles imported. $19, with 200 tricycles produced in this country and another 160 uicycles imported. $19, with 360 tricycles produced in this country and another 320 tricycles imported