A and B are the raw materials required for the production of three goods (M1, M2, M3). The available quantity of A is 200 units, and the quantity of B is 300 units. The requirements of each material for these products are as shown in the table. The required labor hours for M1 are equal to twice the required labor hours for M2, and three times the required labor hours for M3. The maximum number of M1 that can be produced with the current workers employed is 700 units. According to market research, at least 200 units of M1, 200 units of M2, and 150 units of M3 should be produced. Due to technological limitations, the production ratio of M1:M2:M3 should be 3:2:5. Given that the profit per unit for the materials is provided in the table, what is the model and the production plan that maximizes profit