Find the minimum cost solution for the transportation problem detailed in the table below.

Costs	Dest 1	Dest 2	Dest 3	Supply
Source 1	30	12	5	20
Source 2	10	14	12	30
Source 3	20	11	25	75
Demand	40	60	55

a. Is the problem balanced? [ Select ] ["yes", "maybe", "neither", "no"]

b. Where is the discrepancy, if any, in the transportation problem? [ Select ] ["both", "demand", "supply", "neither"]

c. What is the amount of the discrepancy, if any? [ Select ] ["0", "35", "40", "30"]

b. What is the optimal solution? $ [ Select ] ["1100", "2250", "1470", "1370"]