Smart Corporation produces and sells laptops. It has four factories and four shops located in different cities. The management of Smart Corporation has just bought a new machine that can improve its productivity. After using the new machine, Smart Corporation's production has increased by 500 units. Therefore, the management has decided to open a new shop and two cities are under their consideration. The two cities under consideration are City E and City F. The shipping cost per unit (RM), factory supplies, and shop demands are as follows

Factory	Shop						Supply
	A	B	C	D	E	F
I	30	30	45	55	50	45	700
II	40	35	40	50	35	60	800
III	35	50	30	45	40	55	700
IV	40	30	45	55	45	50	600
Demand	600	700	400	600	500	500

1. Determine the best choice of city to open the new shop. Why?
2. Due to the shipping limitation, no unit shall be shipped from I to City B. What would happen to the answer in (a)?

*by suing QM software generate the answer can i get with the software answer pls